diff --git a/packages/advanced-logic/src/extensions/abstract-extension.ts b/packages/advanced-logic/src/extensions/abstract-extension.ts
index b0c0f847b1..1b545a4543 100644
--- a/packages/advanced-logic/src/extensions/abstract-extension.ts
+++ b/packages/advanced-logic/src/extensions/abstract-extension.ts
@@ -1,5 +1,5 @@
 import { ExtensionTypes, IdentityTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 /**
  * Abstract class to create extension
@@ -53,8 +53,7 @@ export abstract class AbstractExtension<TCreationParameters> implements Extensio
   ): RequestLogicTypes.IExtensionStates {
     this.validate(requestState, extensionAction);
 
-    const copiedExtensionState: RequestLogicTypes.IExtensionStates =
-      Utils.deepCopy(extensionsState);
+    const copiedExtensionState: RequestLogicTypes.IExtensionStates = deepCopy(extensionsState);
 
     if (extensionAction.action === ExtensionTypes.PnFeeReferenceBased.ACTION.CREATE) {
       if (requestState.extensions[extensionAction.id]) {
diff --git a/packages/advanced-logic/src/extensions/payment-network/address-based.ts b/packages/advanced-logic/src/extensions/payment-network/address-based.ts
index 15df7d9fa6..a21350b02e 100644
--- a/packages/advanced-logic/src/extensions/payment-network/address-based.ts
+++ b/packages/advanced-logic/src/extensions/payment-network/address-based.ts
@@ -1,6 +1,6 @@
 import { CurrencyManager, UnsupportedCurrencyError } from '@requestnetwork/currency';
 import { ExtensionTypes, IdentityTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { areEqualIdentities, deepCopy } from '@requestnetwork/utils';
 import DeclarativePaymentNetwork from './declarative';
 
 /**
@@ -194,11 +194,11 @@ export default abstract class AddressBasedPaymentNetwork<
     if (!requestState.payee) {
       throw Error(`The request must have a payee`);
     }
-    if (!Utils.identity.areEqual(actionSigner, requestState.payee)) {
+    if (!areEqualIdentities(actionSigner, requestState.payee)) {
       throw Error(`The signer must be the payee`);
     }
 
-    const copiedExtensionState: ExtensionTypes.IState = Utils.deepCopy(extensionState);
+    const copiedExtensionState: ExtensionTypes.IState = deepCopy(extensionState);
 
     // update payment address
     copiedExtensionState.values.paymentAddress = extensionAction.parameters.paymentAddress;
@@ -241,11 +241,11 @@ export default abstract class AddressBasedPaymentNetwork<
     if (!requestState.payer) {
       throw Error(`The request must have a payer`);
     }
-    if (!Utils.identity.areEqual(actionSigner, requestState.payer)) {
+    if (!areEqualIdentities(actionSigner, requestState.payer)) {
       throw Error(`The signer must be the payer`);
     }
 
-    const copiedExtensionState: ExtensionTypes.IState = Utils.deepCopy(extensionState);
+    const copiedExtensionState: ExtensionTypes.IState = deepCopy(extensionState);
 
     // update refund address
     copiedExtensionState.values.refundAddress = extensionAction.parameters.refundAddress;
diff --git a/packages/advanced-logic/src/extensions/payment-network/declarative.ts b/packages/advanced-logic/src/extensions/payment-network/declarative.ts
index 231a18bd74..634f21cc7a 100644
--- a/packages/advanced-logic/src/extensions/payment-network/declarative.ts
+++ b/packages/advanced-logic/src/extensions/payment-network/declarative.ts
@@ -1,5 +1,5 @@
 import { ExtensionTypes, IdentityTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { addAmount, areEqualIdentities, deepCopy, isValidAmount } from '@requestnetwork/utils';
 import { AbstractExtension } from '../abstract-extension';
 
 const CURRENT_VERSION = '0.1.0';
@@ -239,14 +239,14 @@ export default class DeclarativePaymentNetwork<
     timestamp: number,
   ): ExtensionTypes.IState {
     this.checkIdentities(extensionState, requestState, actionSigner, RequestLogicTypes.ROLE.PAYER);
-    if (!Utils.amount.isValid(extensionAction.parameters.amount)) {
+    if (!isValidAmount(extensionAction.parameters.amount)) {
       throw Error(`The amount is not a valid amount`);
     }
 
-    const copiedExtensionState: ExtensionTypes.IState = Utils.deepCopy(extensionState);
+    const copiedExtensionState: ExtensionTypes.IState = deepCopy(extensionState);
 
     // increment sentPaymentAmount
-    copiedExtensionState.values.sentPaymentAmount = Utils.amount.add(
+    copiedExtensionState.values.sentPaymentAmount = addAmount(
       copiedExtensionState.values.sentPaymentAmount,
       extensionAction.parameters.amount,
     );
@@ -285,14 +285,14 @@ export default class DeclarativePaymentNetwork<
     timestamp: number,
   ): ExtensionTypes.IState {
     this.checkIdentities(extensionState, requestState, actionSigner, RequestLogicTypes.ROLE.PAYEE);
-    if (!Utils.amount.isValid(extensionAction.parameters.amount)) {
+    if (!isValidAmount(extensionAction.parameters.amount)) {
       throw Error(`The amount is not a valid amount`);
     }
 
-    const copiedExtensionState: ExtensionTypes.IState = Utils.deepCopy(extensionState);
+    const copiedExtensionState: ExtensionTypes.IState = deepCopy(extensionState);
 
     // increment sentRefundAmount
-    copiedExtensionState.values.sentRefundAmount = Utils.amount.add(
+    copiedExtensionState.values.sentRefundAmount = addAmount(
       copiedExtensionState.values.sentRefundAmount,
       extensionAction.parameters.amount,
     );
@@ -331,14 +331,14 @@ export default class DeclarativePaymentNetwork<
     timestamp: number,
   ): ExtensionTypes.IState {
     this.checkIdentities(extensionState, requestState, actionSigner, RequestLogicTypes.ROLE.PAYEE);
-    if (!Utils.amount.isValid(extensionAction.parameters.amount)) {
+    if (!isValidAmount(extensionAction.parameters.amount)) {
       throw Error(`The amount is not a valid amount`);
     }
 
-    const copiedExtensionState: ExtensionTypes.IState = Utils.deepCopy(extensionState);
+    const copiedExtensionState: ExtensionTypes.IState = deepCopy(extensionState);
 
     // increment receivedPaymentAmount
-    copiedExtensionState.values.receivedPaymentAmount = Utils.amount.add(
+    copiedExtensionState.values.receivedPaymentAmount = addAmount(
       copiedExtensionState.values.receivedPaymentAmount,
       extensionAction.parameters.amount,
     );
@@ -377,14 +377,14 @@ export default class DeclarativePaymentNetwork<
     timestamp: number,
   ): ExtensionTypes.IState {
     this.checkIdentities(extensionState, requestState, actionSigner, RequestLogicTypes.ROLE.PAYER);
-    if (!Utils.amount.isValid(extensionAction.parameters.amount)) {
+    if (!isValidAmount(extensionAction.parameters.amount)) {
       throw Error(`The amount is not a valid amount`);
     }
 
-    const copiedExtensionState: ExtensionTypes.IState = Utils.deepCopy(extensionState);
+    const copiedExtensionState: ExtensionTypes.IState = deepCopy(extensionState);
 
     // increment receivedRefundAmount
-    copiedExtensionState.values.receivedRefundAmount = Utils.amount.add(
+    copiedExtensionState.values.receivedRefundAmount = addAmount(
       copiedExtensionState.values.receivedRefundAmount,
       extensionAction.parameters.amount,
     );
@@ -427,7 +427,7 @@ export default class DeclarativePaymentNetwork<
     }
     this.checkIdentities(extensionState, requestState, actionSigner, RequestLogicTypes.ROLE.PAYEE);
 
-    const copiedExtensionState: ExtensionTypes.IState = Utils.deepCopy(extensionState);
+    const copiedExtensionState: ExtensionTypes.IState = deepCopy(extensionState);
 
     // assign paymentInfo
     copiedExtensionState.values.paymentInfo = extensionAction.parameters.paymentInfo;
@@ -463,9 +463,9 @@ export default class DeclarativePaymentNetwork<
     timestamp: number,
   ): ExtensionTypes.IState {
     let delegateStr: string;
-    if (Utils.identity.areEqual(actionSigner, requestState.payee)) {
+    if (areEqualIdentities(actionSigner, requestState.payee)) {
       delegateStr = 'payeeDelegate';
-    } else if (Utils.identity.areEqual(actionSigner, requestState.payer)) {
+    } else if (areEqualIdentities(actionSigner, requestState.payer)) {
       delegateStr = 'payerDelegate';
     } else {
       throw Error(`The signer must be the payee or the payer`);
@@ -475,7 +475,7 @@ export default class DeclarativePaymentNetwork<
       throw Error(`The ${delegateStr} is already assigned`);
     }
 
-    const copiedExtensionState: ExtensionTypes.IState = Utils.deepCopy(extensionState);
+    const copiedExtensionState: ExtensionTypes.IState = deepCopy(extensionState);
 
     // assign payeeDelegate or payerDelegate
     copiedExtensionState.values[delegateStr] = extensionAction.parameters.delegate;
@@ -515,7 +515,7 @@ export default class DeclarativePaymentNetwork<
     }
     this.checkIdentities(extensionState, requestState, actionSigner, RequestLogicTypes.ROLE.PAYER);
 
-    const copiedExtensionState: ExtensionTypes.IState = Utils.deepCopy(extensionState);
+    const copiedExtensionState: ExtensionTypes.IState = deepCopy(extensionState);
 
     // assign refundInfo
     copiedExtensionState.values.refundInfo = extensionAction.parameters.refundInfo;
@@ -567,8 +567,8 @@ export default class DeclarativePaymentNetwork<
       throw Error(`The request must have a ${requestRoleStr}`);
     }
     if (
-      !Utils.identity.areEqual(actionSigner, requestRole) &&
-      !Utils.identity.areEqual(actionSigner, requestRoleDelegate)
+      !areEqualIdentities(actionSigner, requestRole) &&
+      !areEqualIdentities(actionSigner, requestRoleDelegate)
     ) {
       throw Error(`The signer must be the ${requestRoleStr} or the ${requestRoleStr}Delegate`);
     }
diff --git a/packages/advanced-logic/src/extensions/payment-network/erc777/stream.ts b/packages/advanced-logic/src/extensions/payment-network/erc777/stream.ts
index e64f24787c..1b8e2da50e 100644
--- a/packages/advanced-logic/src/extensions/payment-network/erc777/stream.ts
+++ b/packages/advanced-logic/src/extensions/payment-network/erc777/stream.ts
@@ -1,6 +1,6 @@
 import { ExtensionTypes, RequestLogicTypes, TypesUtils } from '@requestnetwork/types';
 import ReferenceBasedPaymentNetwork from '../reference-based';
-import Utils from '@requestnetwork/utils';
+import { isValidAmount } from '@requestnetwork/utils';
 const CURRENT_VERSION = '0.1.0';
 
 /**
@@ -92,7 +92,7 @@ export default class Erc777StreamPaymentNetwork<
       if (
         !extensionAction.parameters.expectedStartDate ||
         (extensionAction.parameters.expectedStartDate &&
-          !Utils.amount.isValid(extensionAction.parameters.expectedStartDate))
+          !isValidAmount(extensionAction.parameters.expectedStartDate))
       ) {
         throw Error('expectedStartDate is empty or invalid');
       }
@@ -100,7 +100,7 @@ export default class Erc777StreamPaymentNetwork<
       if (
         !extensionAction.parameters.expectedFlowRate ||
         (extensionAction.parameters.expectedFlowRate &&
-          !Utils.amount.isValid(extensionAction.parameters.expectedFlowRate))
+          !isValidAmount(extensionAction.parameters.expectedFlowRate))
       ) {
         throw Error('expectedFlowRate is empty or invalid');
       }
diff --git a/packages/advanced-logic/src/extensions/payment-network/fee-reference-based.ts b/packages/advanced-logic/src/extensions/payment-network/fee-reference-based.ts
index 26ff07ef88..132f264ff0 100644
--- a/packages/advanced-logic/src/extensions/payment-network/fee-reference-based.ts
+++ b/packages/advanced-logic/src/extensions/payment-network/fee-reference-based.ts
@@ -1,6 +1,6 @@
 import { ExtensionTypes, IdentityTypes, RequestLogicTypes } from '@requestnetwork/types';
 import ReferenceBasedPaymentNetwork from './reference-based';
-import Utils from '@requestnetwork/utils';
+import { areEqualIdentities, deepCopy, isValidAmount } from '@requestnetwork/utils';
 
 /**
  * Core of the reference based with fee payment networks
@@ -35,7 +35,7 @@ export abstract class FeeReferenceBasedPaymentNetwork<
       throw Error('feeAddress is not a valid address');
     }
 
-    if (creationParameters.feeAmount && !Utils.amount.isValid(creationParameters.feeAmount)) {
+    if (creationParameters.feeAmount && !isValidAmount(creationParameters.feeAmount)) {
       throw Error('feeAmount is not a valid amount');
     }
 
@@ -65,7 +65,7 @@ export abstract class FeeReferenceBasedPaymentNetwork<
       throw Error('feeAddress is not a valid address');
     }
 
-    if (addFeeParameters.feeAmount && !Utils.amount.isValid(addFeeParameters.feeAmount)) {
+    if (addFeeParameters.feeAmount && !isValidAmount(addFeeParameters.feeAmount)) {
       throw Error('feeAmount is not a valid amount');
     }
 
@@ -103,7 +103,7 @@ export abstract class FeeReferenceBasedPaymentNetwork<
     }
     if (
       extensionAction.parameters.feeAmount &&
-      !Utils.amount.isValid(extensionAction.parameters.feeAmount)
+      !isValidAmount(extensionAction.parameters.feeAmount)
     ) {
       throw Error('feeAmount is not a valid amount');
     }
@@ -162,7 +162,7 @@ export abstract class FeeReferenceBasedPaymentNetwork<
     }
     if (
       extensionAction.parameters.feeAmount &&
-      !Utils.amount.isValid(extensionAction.parameters.feeAmount)
+      !isValidAmount(extensionAction.parameters.feeAmount)
     ) {
       throw Error('feeAmount is not a valid amount');
     }
@@ -172,11 +172,11 @@ export abstract class FeeReferenceBasedPaymentNetwork<
     if (!requestState.payee) {
       throw Error(`The request must have a payee`);
     }
-    if (!Utils.identity.areEqual(actionSigner, requestState.payee)) {
+    if (!areEqualIdentities(actionSigner, requestState.payee)) {
       throw Error(`The signer must be the payee`);
     }
 
-    const copiedExtensionState: ExtensionTypes.IState = Utils.deepCopy(extensionState);
+    const copiedExtensionState: ExtensionTypes.IState = deepCopy(extensionState);
 
     // update fee address and amount
     copiedExtensionState.values.feeAddress = extensionAction.parameters.feeAddress;
diff --git a/packages/advanced-logic/test/advanced-logic.test.ts b/packages/advanced-logic/test/advanced-logic.test.ts
index 87bc868c7b..53cba4d377 100644
--- a/packages/advanced-logic/test/advanced-logic.test.ts
+++ b/packages/advanced-logic/test/advanced-logic.test.ts
@@ -4,7 +4,7 @@ import * as DataBTCCreate from './utils/payment-network/bitcoin/generator-data-c
 import * as DataDeclarativeCreate from './utils/payment-network/any/generator-data-create';
 import * as DataTestnetBTCCreate from './utils/payment-network/bitcoin/testnet-generator-data-create';
 
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 import { AdvancedLogic } from '../src/index';
 
@@ -19,7 +19,7 @@ describe('advanced-logic.ts', () => {
   });
   describe('applyActionToExtensions', () => {
     it('can applyActionToExtensions', () => {
-      const requestCreatedNoExtensionBefore = Utils.deepCopy(TestData.requestCreatedNoExtension);
+      const requestCreatedNoExtensionBefore = deepCopy(TestData.requestCreatedNoExtension);
       const previousState = {};
 
       const newExtensionState = advancedLogic.applyActionToExtensions(
@@ -39,9 +39,7 @@ describe('advanced-logic.ts', () => {
     });
 
     it('can applyActionToExtensions with pn bitcoin address based', () => {
-      const requestCreatedNoExtensionBefore = Utils.deepCopy(
-        DataBTCCreate.requestStateNoExtensions,
-      );
+      const requestCreatedNoExtensionBefore = deepCopy(DataBTCCreate.requestStateNoExtensions);
 
       const newExtensionState = advancedLogic.applyActionToExtensions(
         requestCreatedNoExtensionBefore.extensions,
@@ -58,7 +56,7 @@ describe('advanced-logic.ts', () => {
     });
 
     it('can applyActionToExtensions with pn testnet bitcoin address based', () => {
-      const requestCreatedNoExtensionBefore = Utils.deepCopy(
+      const requestCreatedNoExtensionBefore = deepCopy(
         DataTestnetBTCCreate.requestStateNoExtensions,
       );
 
@@ -79,7 +77,7 @@ describe('advanced-logic.ts', () => {
     });
 
     it('can applyActionToExtensions with declarative payment network', () => {
-      const requestCreatedNoExtensionBefore = Utils.deepCopy(
+      const requestCreatedNoExtensionBefore = deepCopy(
         DataDeclarativeCreate.requestStateNoExtensions,
       );
 
diff --git a/packages/advanced-logic/test/extensions/content-data.test.ts b/packages/advanced-logic/test/extensions/content-data.test.ts
index f832ef72e7..a23d9629d0 100644
--- a/packages/advanced-logic/test/extensions/content-data.test.ts
+++ b/packages/advanced-logic/test/extensions/content-data.test.ts
@@ -1,5 +1,5 @@
 import { ExtensionTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 import ContentData from '../../src/extensions/content-data';
 
@@ -11,7 +11,7 @@ const contentData = new ContentData();
 describe('content-data', () => {
   describe('applyActionToExtension', () => {
     it('can applyActionToExtensions', () => {
-      const requestCreatedNoExtensionBefore = Utils.deepCopy(TestData.requestCreatedNoExtension);
+      const requestCreatedNoExtensionBefore = deepCopy(TestData.requestCreatedNoExtension);
       const previousState = {};
       const newExtensionState = contentData.applyActionToExtension(
         previousState,
diff --git a/packages/advanced-logic/test/extensions/payment-network/any-to-erc20-proxy.test.ts b/packages/advanced-logic/test/extensions/payment-network/any-to-erc20-proxy.test.ts
index 6efd8bd628..7975ba1d62 100644
--- a/packages/advanced-logic/test/extensions/payment-network/any-to-erc20-proxy.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/any-to-erc20-proxy.test.ts
@@ -1,5 +1,5 @@
 import { ExtensionTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import { CurrencyManager, UnsupportedCurrencyError } from '@requestnetwork/currency';
 
 import AnyToErc20Proxy from '../../../src/extensions/payment-network/any-to-erc20-proxy';
@@ -171,7 +171,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
     });
 
     it('cannot applyActionToExtensions of creation on a non supported currency', () => {
-      const requestCreatedNoExtension: RequestLogicTypes.IRequest = Utils.deepCopy(
+      const requestCreatedNoExtension: RequestLogicTypes.IRequest = deepCopy(
         TestData.requestCreatedNoExtension,
       );
       requestCreatedNoExtension.currency = {
@@ -179,7 +179,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
         value: 'ETH',
       };
 
-      const action: ExtensionTypes.IAction = Utils.deepCopy(
+      const action: ExtensionTypes.IAction = deepCopy(
         DataConversionERC20FeeCreate.actionCreationFull,
       );
       action.parameters.network = 'invalid network';
@@ -197,7 +197,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
     });
 
     it('cannot applyActionToExtensions of creation on a non supported currency', () => {
-      const requestCreatedNoExtension: RequestLogicTypes.IRequest = Utils.deepCopy(
+      const requestCreatedNoExtension: RequestLogicTypes.IRequest = deepCopy(
         TestData.requestCreatedNoExtension,
       );
       requestCreatedNoExtension.currency = {
@@ -205,7 +205,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
         value: 'invalid value',
       };
 
-      const action: ExtensionTypes.IAction = Utils.deepCopy(
+      const action: ExtensionTypes.IAction = deepCopy(
         DataConversionERC20FeeCreate.actionCreationFull,
       );
 
@@ -312,7 +312,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
   describe('applyActionToExtension', () => {
     describe('applyActionToExtension/unknown action', () => {
       it('cannot applyActionToExtensions of unknown action', () => {
-        const unknownAction = Utils.deepCopy(DataConversionERC20FeeAddData.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataConversionERC20FeeAddData.actionAddPaymentAddress);
         unknownAction.action = 'unknown action' as any;
         // 'must throw'
         expect(() => {
@@ -327,7 +327,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of unknown id', () => {
-        const unknownAction = Utils.deepCopy(DataConversionERC20FeeAddData.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataConversionERC20FeeAddData.actionAddPaymentAddress);
         unknownAction.id = 'unknown id' as any;
         // 'must throw'
         expect(() => {
@@ -357,7 +357,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('can applyActionToExtensions of creation when address is checksumed', () => {
-        const request = Utils.deepCopy(DataConversionERC20FeeCreate.requestStateNoExtensions);
+        const request = deepCopy(DataConversionERC20FeeCreate.requestStateNoExtensions);
         request.currency = {
           type: RequestLogicTypes.CURRENCY.ERC20,
           value: '0x4E15361FD6b4BB609Fa63C81A2be19d873717870', // FTM
@@ -389,7 +389,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of creation on a non supported currency', () => {
-        const requestCreatedNoExtension: RequestLogicTypes.IRequest = Utils.deepCopy(
+        const requestCreatedNoExtension: RequestLogicTypes.IRequest = deepCopy(
           TestData.requestCreatedNoExtension,
         );
         requestCreatedNoExtension.currency = {
@@ -411,9 +411,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of creation with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataConversionERC20FeeCreate.actionCreationFull,
-        );
+        const testnetPaymentAddress = deepCopy(DataConversionERC20FeeCreate.actionCreationFull);
         testnetPaymentAddress.parameters.paymentAddress =
           DataConversionERC20FeeAddData.invalidAddress;
         // 'must throw'
@@ -431,9 +429,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of creation with no tokens accepted', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataConversionERC20FeeCreate.actionCreationFull,
-        );
+        const testnetPaymentAddress = deepCopy(DataConversionERC20FeeCreate.actionCreationFull);
         testnetPaymentAddress.parameters.acceptedTokens = [];
         // 'must throw'
         expect(() => {
@@ -448,9 +444,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of creation with token address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataConversionERC20FeeCreate.actionCreationFull,
-        );
+        const testnetPaymentAddress = deepCopy(DataConversionERC20FeeCreate.actionCreationFull);
         testnetPaymentAddress.parameters.acceptedTokens = ['invalid address'];
         // 'must throw'
         expect(() => {
@@ -465,9 +459,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of creation with refund address not valid', () => {
-        const testnetRefundAddress = Utils.deepCopy(
-          DataConversionERC20FeeCreate.actionCreationFull,
-        );
+        const testnetRefundAddress = deepCopy(DataConversionERC20FeeCreate.actionCreationFull);
         testnetRefundAddress.parameters.refundAddress =
           DataConversionERC20FeeAddData.invalidAddress;
         // 'must throw'
@@ -535,7 +527,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress without a payee', () => {
-        const previousState = Utils.deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
         previousState.payee = undefined;
         // 'must throw'
         expect(() => {
@@ -550,7 +542,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           anyToErc20Proxy.applyActionToExtension(
@@ -577,7 +569,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
+        const testnetPaymentAddress = deepCopy(
           DataConversionERC20FeeAddData.actionAddPaymentAddress,
         );
         testnetPaymentAddress.parameters.paymentAddress =
@@ -625,7 +617,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addRefundAddress without a payer', () => {
-        const previousState = Utils.deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
         previousState.payer = undefined;
         // 'must throw'
         expect(() => {
@@ -640,7 +632,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addRefundAddress signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           anyToErc20Proxy.applyActionToExtension(
@@ -667,7 +659,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addRefundAddress with refund address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
+        const testnetPaymentAddress = deepCopy(
           DataConversionERC20FeeAddData.actionAddRefundAddress,
         );
         testnetPaymentAddress.parameters.refundAddress =
@@ -712,7 +704,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addFee without a payee', () => {
-        const previousState = Utils.deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
         previousState.payee = undefined;
         expect(() => {
           anyToErc20Proxy.applyActionToExtension(
@@ -726,7 +718,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addFee signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionERC20FeeCreate.requestStateCreatedEmpty);
         expect(() => {
           anyToErc20Proxy.applyActionToExtension(
             previousState.extensions,
@@ -751,7 +743,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addFee with fee address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataConversionERC20FeeAddData.actionAddFee);
+        const testnetPaymentAddress = deepCopy(DataConversionERC20FeeAddData.actionAddFee);
         testnetPaymentAddress.parameters.feeAddress = DataConversionERC20FeeAddData.invalidAddress;
         expect(() => {
           anyToErc20Proxy.applyActionToExtension(
@@ -765,7 +757,7 @@ describe('extensions/payment-network/erc20/any-to-erc20-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addFee with fee amount not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataConversionERC20FeeAddData.actionAddFee);
+        const testnetPaymentAddress = deepCopy(DataConversionERC20FeeAddData.actionAddFee);
         testnetPaymentAddress.parameters.feeAmount = 'invalid amount';
         expect(() => {
           anyToErc20Proxy.applyActionToExtension(
diff --git a/packages/advanced-logic/test/extensions/payment-network/any-to-eth-proxy.test.ts b/packages/advanced-logic/test/extensions/payment-network/any-to-eth-proxy.test.ts
index 95329b82ea..9c33c9d562 100644
--- a/packages/advanced-logic/test/extensions/payment-network/any-to-eth-proxy.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/any-to-eth-proxy.test.ts
@@ -1,5 +1,5 @@
 import { ExtensionTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import { CurrencyManager, UnsupportedCurrencyError } from '@requestnetwork/currency';
 
 import AnyToEthProxy from '../../../src/extensions/payment-network/any-to-eth-proxy';
@@ -112,7 +112,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
     });
 
     it('cannot applyActionToExtensions of creation with an invalid network/currency pair', () => {
-      const requestCreatedNoExtension: RequestLogicTypes.IRequest = Utils.deepCopy(
+      const requestCreatedNoExtension: RequestLogicTypes.IRequest = deepCopy(
         TestData.requestCreatedNoExtension,
       );
       requestCreatedNoExtension.currency = {
@@ -120,7 +120,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
         value: 'ETH',
       };
 
-      const action: ExtensionTypes.IAction = Utils.deepCopy(
+      const action: ExtensionTypes.IAction = deepCopy(
         DataConversionETHFeeCreate.actionCreationFull,
       );
       action.parameters.network = 'invalid network';
@@ -140,7 +140,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
     });
 
     it('cannot applyActionToExtensions of creation on a non supported currency', () => {
-      const requestCreatedNoExtension: RequestLogicTypes.IRequest = Utils.deepCopy(
+      const requestCreatedNoExtension: RequestLogicTypes.IRequest = deepCopy(
         TestData.requestCreatedNoExtension,
       );
       requestCreatedNoExtension.currency = {
@@ -149,7 +149,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
         network: 'invalid network',
       };
 
-      const action: ExtensionTypes.IAction = Utils.deepCopy(
+      const action: ExtensionTypes.IAction = deepCopy(
         DataConversionETHFeeCreate.actionCreationFull,
       );
 
@@ -256,7 +256,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
   describe('applyActionToExtension', () => {
     describe('applyActionToExtension/unknown action', () => {
       it('cannot applyActionToExtensions of unknown action', () => {
-        const unknownAction = Utils.deepCopy(DataConversionETHFeeAddData.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataConversionETHFeeAddData.actionAddPaymentAddress);
         unknownAction.action = 'unknown action' as any;
         // 'must throw'
         expect(() => {
@@ -271,7 +271,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of unknown id', () => {
-        const unknownAction = Utils.deepCopy(DataConversionETHFeeAddData.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataConversionETHFeeAddData.actionAddPaymentAddress);
         unknownAction.id = 'unknown id' as any;
         // 'must throw'
         expect(() => {
@@ -301,7 +301,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('can applyActionToExtensions of creation when address is checksumed', () => {
-        const request = Utils.deepCopy(DataConversionETHFeeCreate.requestStateNoExtensions);
+        const request = deepCopy(DataConversionETHFeeCreate.requestStateNoExtensions);
 
         request.currency = {
           type: RequestLogicTypes.CURRENCY.ERC20,
@@ -334,7 +334,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of creation on a non supported currency', () => {
-        const requestCreatedNoExtension: RequestLogicTypes.IRequest = Utils.deepCopy(
+        const requestCreatedNoExtension: RequestLogicTypes.IRequest = deepCopy(
           TestData.requestCreatedNoExtension,
         );
         requestCreatedNoExtension.currency = {
@@ -355,7 +355,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of creation with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataConversionETHFeeCreate.actionCreationFull);
+        const testnetPaymentAddress = deepCopy(DataConversionETHFeeCreate.actionCreationFull);
         testnetPaymentAddress.parameters.paymentAddress =
           DataConversionETHFeeAddData.invalidAddress;
         // 'must throw'
@@ -373,7 +373,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of creation with refund address not valid', () => {
-        const testnetRefundAddress = Utils.deepCopy(DataConversionETHFeeCreate.actionCreationFull);
+        const testnetRefundAddress = deepCopy(DataConversionETHFeeCreate.actionCreationFull);
         testnetRefundAddress.parameters.refundAddress = DataConversionETHFeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -442,7 +442,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress without a payee', () => {
-        const previousState = Utils.deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
         previousState.payee = undefined;
         // 'must throw'
         expect(() => {
@@ -457,7 +457,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           anyToEthProxy.applyActionToExtension(
@@ -484,9 +484,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataConversionETHFeeAddData.actionAddPaymentAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataConversionETHFeeAddData.actionAddPaymentAddress);
         testnetPaymentAddress.parameters.paymentAddress =
           DataConversionETHFeeAddData.invalidAddress;
         // 'must throw'
@@ -534,7 +532,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addRefundAddress without a payer', () => {
-        const previousState = Utils.deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
         previousState.payer = undefined;
         // 'must throw'
         expect(() => {
@@ -549,7 +547,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addRefundAddress signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           anyToEthProxy.applyActionToExtension(
@@ -576,9 +574,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addRefundAddress with refund address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataConversionETHFeeAddData.actionAddRefundAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataConversionETHFeeAddData.actionAddRefundAddress);
         testnetPaymentAddress.parameters.refundAddress = DataConversionETHFeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -622,7 +618,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addFee without a payee', () => {
-        const previousState = Utils.deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
         previousState.payee = undefined;
         expect(() => {
           anyToEthProxy.applyActionToExtension(
@@ -636,7 +632,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addFee signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataConversionETHFeeCreate.requestStateCreatedEmpty);
         expect(() => {
           anyToEthProxy.applyActionToExtension(
             previousState.extensions,
@@ -661,7 +657,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addFee with fee address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataConversionETHFeeAddData.actionAddFee);
+        const testnetPaymentAddress = deepCopy(DataConversionETHFeeAddData.actionAddFee);
         testnetPaymentAddress.parameters.feeAddress = DataConversionETHFeeAddData.invalidAddress;
         expect(() => {
           anyToEthProxy.applyActionToExtension(
@@ -675,7 +671,7 @@ describe('extensions/payment-network/ethereum/any-to-eth-fee-proxy-contract', ()
       });
 
       it('cannot applyActionToExtensions of addFee with fee amount not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataConversionETHFeeAddData.actionAddFee);
+        const testnetPaymentAddress = deepCopy(DataConversionETHFeeAddData.actionAddFee);
         testnetPaymentAddress.parameters.feeAmount = 'invalid amount';
         expect(() => {
           anyToEthProxy.applyActionToExtension(
diff --git a/packages/advanced-logic/test/extensions/payment-network/any-to-near.test.ts b/packages/advanced-logic/test/extensions/payment-network/any-to-near.test.ts
index c9eaef8add..b9e099d1ce 100644
--- a/packages/advanced-logic/test/extensions/payment-network/any-to-near.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/any-to-near.test.ts
@@ -12,7 +12,7 @@ import { ExtensionTypes, RequestLogicTypes } from '@requestnetwork/types';
 import AnyToNearPaymentNetwork from '../../../src/extensions/payment-network/near/any-to-near';
 import AnyToNativeTokenPaymentNetwork from '../../../src/extensions/payment-network/any-to-native';
 import { CurrencyManager } from '@requestnetwork/currency';
-import utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import AnyToNearTestnetPaymentNetwork from '../../../src/extensions/payment-network/near/any-to-near-testnet';
 
 const salt = arbitrarySalt;
@@ -272,7 +272,7 @@ describe('extensions/payment-network/any-to-native-token', () => {
         ...requestStateNoExtensions,
         currency: validCurrency,
       };
-      creationAction = utils.deepCopy(actionCreationWithAnyToNativeTokenPayment);
+      creationAction = deepCopy(actionCreationWithAnyToNativeTokenPayment);
     });
     describe('applyActionToExtension/create action', () => {
       it('works with valid parameters', () => {
diff --git a/packages/advanced-logic/test/extensions/payment-network/bitcoin/mainnet-address-based.test.ts b/packages/advanced-logic/test/extensions/payment-network/bitcoin/mainnet-address-based.test.ts
index 5e62bb7902..1671625232 100644
--- a/packages/advanced-logic/test/extensions/payment-network/bitcoin/mainnet-address-based.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/bitcoin/mainnet-address-based.test.ts
@@ -1,7 +1,5 @@
 import MainnetBitcoinAddressBasedPN from '../../../../src/extensions/payment-network/bitcoin/mainnet-address-based';
-
-import Utils from '@requestnetwork/utils';
-
+import { deepCopy } from '@requestnetwork/utils';
 import * as DataBTCAddPaymentAddress from '../../../utils/payment-network/bitcoin/generator-data-add-payment-address';
 import * as DataBTCCreate from '../../../utils/payment-network/bitcoin/generator-data-create';
 import * as TestData from '../../../utils/test-data-generator';
@@ -25,7 +23,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
       expect(
-        Utils.deepCopy(
+        deepCopy(
           mainnetBitcoinAddressBasedPN.createCreationAction({
             paymentAddress: DataBTCCreate.paymentBTCAddress,
           }),
@@ -36,7 +34,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
       expect(
-        Utils.deepCopy(
+        deepCopy(
           mainnetBitcoinAddressBasedPN.createCreationAction({
             refundAddress: DataBTCCreate.refundBTCAddress,
           }),
@@ -46,7 +44,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
     it('can createCreationAction with nothing', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
-      expect(Utils.deepCopy(mainnetBitcoinAddressBasedPN.createCreationAction({}))).toEqual(
+      expect(deepCopy(mainnetBitcoinAddressBasedPN.createCreationAction({}))).toEqual(
         DataBTCCreate.actionCreationEmpty,
       );
     });
@@ -119,7 +117,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
   describe('applyActionToExtension', () => {
     describe('applyActionToExtension/unknown action', () => {
       it('cannot applyActionToExtensions of unknown action', () => {
-        const unknownAction = Utils.deepCopy(DataBTCAddPaymentAddress.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataBTCAddPaymentAddress.actionAddPaymentAddress);
         unknownAction.action = 'unknown action' as any;
         // 'must throw'
         expect(() => {
@@ -173,9 +171,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
       });
 
       it('cannot applyActionToExtensions of creation with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataBTCCreate.actionCreationWithPaymentAndRefund,
-        );
+        const testnetPaymentAddress = deepCopy(DataBTCCreate.actionCreationWithPaymentAndRefund);
         testnetPaymentAddress.parameters.paymentAddress =
           DataBTCAddPaymentAddress.paymentTestnetBTCAddress;
         // 'must throw'
@@ -193,9 +189,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
       });
 
       it('cannot applyActionToExtensions of creation with refund address not valid', () => {
-        const testnetRefundAddress = Utils.deepCopy(
-          DataBTCCreate.actionCreationWithPaymentAndRefund,
-        );
+        const testnetRefundAddress = deepCopy(DataBTCCreate.actionCreationWithPaymentAndRefund);
         testnetRefundAddress.parameters.refundAddress =
           DataBTCAddPaymentAddress.refundTestnetBTCAddress;
         // 'must throw'
@@ -262,7 +256,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress without a payee', () => {
-        const previousState = Utils.deepCopy(DataBTCCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataBTCCreate.requestStateCreatedEmpty);
         previousState.payee = undefined;
         // 'must throw'
         expect(() => {
@@ -276,7 +270,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
         }).toThrowError(`The request must have a payee`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataBTCCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataBTCCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           mainnetBitcoinAddressBasedPN.applyActionToExtension(
@@ -301,9 +295,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
         }).toThrowError(`Payment address already given`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataBTCAddPaymentAddress.actionAddPaymentAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataBTCAddPaymentAddress.actionAddPaymentAddress);
         testnetPaymentAddress.parameters.paymentAddress =
           DataBTCAddPaymentAddress.paymentTestnetBTCAddress;
         // 'must throw'
@@ -347,7 +339,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addRefundAddress without a payer', () => {
-        const previousState = Utils.deepCopy(DataBTCCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataBTCCreate.requestStateCreatedEmpty);
         previousState.payer = undefined;
         // 'must throw'
         expect(() => {
@@ -361,7 +353,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
         }).toThrowError(`The request must have a payer`);
       });
       it('cannot applyActionToExtensions of addRefundAddress signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(DataBTCCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataBTCCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           mainnetBitcoinAddressBasedPN.applyActionToExtension(
@@ -386,9 +378,7 @@ describe('extensions/payment-network/bitcoin/mainnet-address-based', () => {
         }).toThrowError(`Refund address already given`);
       });
       it('cannot applyActionToExtensions of addRefundAddress with refund address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataBTCAddPaymentAddress.actionAddRefundAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataBTCAddPaymentAddress.actionAddRefundAddress);
         testnetPaymentAddress.parameters.refundAddress =
           DataBTCAddPaymentAddress.paymentTestnetBTCAddress;
         // 'must throw'
diff --git a/packages/advanced-logic/test/extensions/payment-network/bitcoin/testnet-address-based.test.ts b/packages/advanced-logic/test/extensions/payment-network/bitcoin/testnet-address-based.test.ts
index 3b193bcc9c..7133bad547 100644
--- a/packages/advanced-logic/test/extensions/payment-network/bitcoin/testnet-address-based.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/bitcoin/testnet-address-based.test.ts
@@ -1,7 +1,5 @@
 import TestnetBitcoinAddressBasedPN from '../../../../src/extensions/payment-network/bitcoin/testnet-address-based';
-
-import Utils from '@requestnetwork/utils';
-
+import { deepCopy } from '@requestnetwork/utils';
 import * as DataBTCAddPaymentAddress from '../../../utils/payment-network/bitcoin/testnet-generator-data-add-payment-address';
 import * as DataBTCCreate from '../../../utils/payment-network/bitcoin/testnet-generator-data-create';
 import * as TestData from '../../../utils/test-data-generator';
@@ -25,7 +23,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
       expect(
-        Utils.deepCopy(
+        deepCopy(
           testnetBitcoinAddressBasedPN.createCreationAction({
             paymentAddress: DataBTCCreate.paymentTestnetBTCAddress,
           }),
@@ -36,7 +34,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
       expect(
-        Utils.deepCopy(
+        deepCopy(
           testnetBitcoinAddressBasedPN.createCreationAction({
             refundAddress: DataBTCCreate.refundTestnetBTCAddress,
           }),
@@ -46,7 +44,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
     it('can createCreationAction with nothing', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
-      expect(Utils.deepCopy(testnetBitcoinAddressBasedPN.createCreationAction({}))).toEqual(
+      expect(deepCopy(testnetBitcoinAddressBasedPN.createCreationAction({}))).toEqual(
         DataBTCCreate.actionCreationEmpty,
       );
     });
@@ -111,7 +109,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
   describe('applyActionToExtension', () => {
     describe('applyActionToExtension/unknown action', () => {
       it('cannot applyActionToExtensions of unknown action', () => {
-        const unknownAction = Utils.deepCopy(DataBTCAddPaymentAddress.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataBTCAddPaymentAddress.actionAddPaymentAddress);
         unknownAction.action = 'unknown action' as any;
         // 'must throw'
         expect(() => {
@@ -165,9 +163,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
       });
 
       it('cannot applyActionToExtensions of creation with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataBTCCreate.actionCreationWithPaymentAndRefund,
-        );
+        const testnetPaymentAddress = deepCopy(DataBTCCreate.actionCreationWithPaymentAndRefund);
         testnetPaymentAddress.parameters.paymentAddress =
           DataBTCAddPaymentAddress.paymentBTCAddress;
         // 'must throw'
@@ -185,9 +181,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
       });
 
       it('cannot applyActionToExtensions of creation with refund address not valid', () => {
-        const testnetRefundAddress = Utils.deepCopy(
-          DataBTCCreate.actionCreationWithPaymentAndRefund,
-        );
+        const testnetRefundAddress = deepCopy(DataBTCCreate.actionCreationWithPaymentAndRefund);
         testnetRefundAddress.parameters.refundAddress = DataBTCAddPaymentAddress.refundBTCAddress;
         // 'must throw'
         expect(() => {
@@ -253,7 +247,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress without a payee', () => {
-        const previousState = Utils.deepCopy(DataBTCCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataBTCCreate.requestStateCreatedEmpty);
         previousState.payee = undefined;
         // 'must throw'
         expect(() => {
@@ -267,7 +261,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
         }).toThrowError(`The request must have a payee`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataBTCCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataBTCCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           testnetBitcoinAddressBasedPN.applyActionToExtension(
@@ -292,9 +286,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
         }).toThrowError(`Payment address already given`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataBTCAddPaymentAddress.actionAddPaymentAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataBTCAddPaymentAddress.actionAddPaymentAddress);
         testnetPaymentAddress.parameters.paymentAddress =
           DataBTCAddPaymentAddress.paymentBTCAddress;
         // 'must throw'
@@ -338,7 +330,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addRefundAddress without a payer', () => {
-        const previousState = Utils.deepCopy(DataBTCCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataBTCCreate.requestStateCreatedEmpty);
         previousState.payer = undefined;
         // 'must throw'
         expect(() => {
@@ -352,7 +344,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
         }).toThrowError(`The request must have a payer`);
       });
       it('cannot applyActionToExtensions of addRefundAddress signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(DataBTCCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataBTCCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           testnetBitcoinAddressBasedPN.applyActionToExtension(
@@ -377,9 +369,7 @@ describe('extensions/payment-network/bitcoin/testnet-address-based', () => {
         }).toThrowError(`Refund address already given`);
       });
       it('cannot applyActionToExtensions of addRefundAddress with refund address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataBTCAddPaymentAddress.actionAddRefundAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataBTCAddPaymentAddress.actionAddRefundAddress);
         testnetPaymentAddress.parameters.refundAddress = DataBTCAddPaymentAddress.refundBTCAddress;
         // 'must throw'
         expect(() => {
diff --git a/packages/advanced-logic/test/extensions/payment-network/declarative.test.ts b/packages/advanced-logic/test/extensions/payment-network/declarative.test.ts
index 6628872c80..e500322d49 100644
--- a/packages/advanced-logic/test/extensions/payment-network/declarative.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/declarative.test.ts
@@ -1,6 +1,6 @@
 import PnAnyDeclarative from '../../../src/extensions/payment-network/declarative';
 
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import { ExtensionTypes } from '@requestnetwork/types';
 
 import * as TestDataDeclarative from '../../utils/payment-network/any/generator-data-create';
@@ -26,7 +26,7 @@ describe('extensions/payment-network/any/declarative', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
       expect(
-        Utils.deepCopy(
+        deepCopy(
           pnAnyDeclarative.createCreationAction({
             paymentInfo: TestDataDeclarative.paymentInfo,
           }),
@@ -37,7 +37,7 @@ describe('extensions/payment-network/any/declarative', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
       expect(
-        Utils.deepCopy(
+        deepCopy(
           pnAnyDeclarative.createCreationAction({
             refundInfo: TestDataDeclarative.refundInfo,
           }),
@@ -49,7 +49,7 @@ describe('extensions/payment-network/any/declarative', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
       expect(
-        Utils.deepCopy(
+        deepCopy(
           pnAnyDeclarative.createCreationAction({
             payeeDelegate: TestDataDeclarative.payeeDelegate,
           }),
@@ -150,7 +150,7 @@ describe('extensions/payment-network/any/declarative', () => {
   describe('applyActionToExtension', () => {
     describe('applyActionToExtension/unknown action', () => {
       it('cannot applyActionToExtensions of unknown action', () => {
-        const unknownAction = Utils.deepCopy(TestDataDeclarative.actionCreationEmpty);
+        const unknownAction = deepCopy(TestDataDeclarative.actionCreationEmpty);
         unknownAction.action = 'unknown action' as any;
 
         expect(() => {
@@ -226,7 +226,7 @@ describe('extensions/payment-network/any/declarative', () => {
         ).toEqual(TestDataDeclarative.extensionStatePaymentInstructionAdded);
       });
       it('can applyActionToExtensions of addPaymentInstruction from payeeDelegate', () => {
-        const expectedFromPayeeDelegate = Utils.deepCopy(
+        const expectedFromPayeeDelegate = deepCopy(
           TestDataDeclarative.extensionStatePaymentInstructionAdded,
         );
         expectedFromPayeeDelegate[
@@ -255,7 +255,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addPaymentInstruction without a payee', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
         previousState.payee = undefined;
         previousState.extensions[
           ExtensionTypes.PAYMENT_NETWORK_ID.ANY_DECLARATIVE as string
@@ -272,7 +272,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The request must have a payee`);
       });
       it('cannot applyActionToExtensions of addPaymentInstruction signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
 
         expect(() => {
           pnAnyDeclarative.applyActionToExtension(
@@ -310,7 +310,7 @@ describe('extensions/payment-network/any/declarative', () => {
         ).toEqual(TestDataDeclarative.extensionStateRefundInstructionAdded);
       });
       it('can applyActionToExtensions of addRefundInstruction from payerDelegate', () => {
-        const expectedFromThirdParty = Utils.deepCopy(
+        const expectedFromThirdParty = deepCopy(
           TestDataDeclarative.extensionStateRefundInstructionAdded,
         );
         expectedFromThirdParty[
@@ -345,7 +345,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addRefundInstruction without a payer', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
         previousState.payer = undefined;
         previousState.extensions[
           ExtensionTypes.PAYMENT_NETWORK_ID.ANY_DECLARATIVE as string
@@ -362,7 +362,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The request must have a payer`);
       });
       it('cannot applyActionToExtensions of addRefundInstruction signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
 
         expect(() => {
           pnAnyDeclarative.applyActionToExtension(
@@ -400,9 +400,7 @@ describe('extensions/payment-network/any/declarative', () => {
         ).toEqual(TestDataDeclarative.extensionStateDeclaredSent);
       });
       it('can applyActionToExtensions of declareSentPayment from payerDelegate', () => {
-        const expectedFromThirdParty = Utils.deepCopy(
-          TestDataDeclarative.extensionStateDeclaredSent,
-        );
+        const expectedFromThirdParty = deepCopy(TestDataDeclarative.extensionStateDeclaredSent);
         expectedFromThirdParty[
           ExtensionTypes.PAYMENT_NETWORK_ID.ANY_DECLARATIVE as string
         ].events[1].from = TestDataDeclarative.payerDelegate;
@@ -432,7 +430,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of declareSentPayment without a payer', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
         previousState.payer = undefined;
         previousState.extensions[
           ExtensionTypes.PAYMENT_NETWORK_ID.ANY_DECLARATIVE as string
@@ -449,7 +447,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The request must have a payer`);
       });
       it('cannot applyActionToExtensions of declareSentPayment signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
 
         expect(() => {
           pnAnyDeclarative.applyActionToExtension(
@@ -489,7 +487,7 @@ describe('extensions/payment-network/any/declarative', () => {
         ).toEqual(TestDataDeclarative.declarativeExtStateRefundDeclared);
       });
       it('can applyActionToExtensions of declareReceivedRefund from payerDelegate', () => {
-        const expectedFromThirdParty = Utils.deepCopy(
+        const expectedFromThirdParty = deepCopy(
           TestDataDeclarative.declarativeExtStateRefundDeclared,
         );
         expectedFromThirdParty[
@@ -521,7 +519,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of declareReceivedRefund without a payer', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
         previousState.payer = undefined;
         previousState.extensions[
           ExtensionTypes.PAYMENT_NETWORK_ID.ANY_DECLARATIVE as string
@@ -538,7 +536,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The request must have a payer`);
       });
       it('cannot applyActionToExtensions of declareReceivedRefund signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
 
         expect(() => {
           pnAnyDeclarative.applyActionToExtension(
@@ -578,7 +576,7 @@ describe('extensions/payment-network/any/declarative', () => {
         ).toEqual(TestDataDeclarative.extensionStateSentRefund);
       });
       it('can applyActionToExtensions of declareSentRefund from payeeDelegate', () => {
-        const expectedFromThirdParty = Utils.deepCopy(TestDataDeclarative.extensionStateSentRefund);
+        const expectedFromThirdParty = deepCopy(TestDataDeclarative.extensionStateSentRefund);
         expectedFromThirdParty[
           ExtensionTypes.PAYMENT_NETWORK_ID.ANY_DECLARATIVE as string
         ].events[1].from = TestDataDeclarative.payeeDelegate;
@@ -605,7 +603,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of declareSentRefund without a payee', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
         previousState.payee = undefined;
         previousState.extensions[
           ExtensionTypes.PAYMENT_NETWORK_ID.ANY_DECLARATIVE as string
@@ -622,7 +620,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The request must have a payee`);
       });
       it('cannot applyActionToExtensions of declareSentRefund signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
 
         expect(() => {
           pnAnyDeclarative.applyActionToExtension(
@@ -662,9 +660,7 @@ describe('extensions/payment-network/any/declarative', () => {
         ).toEqual(TestDataDeclarative.extensionStateReceivedPayment);
       });
       it('can applyActionToExtensions of declareReceivedPayment from payeeDelegate', () => {
-        const expectedFromThirdParty = Utils.deepCopy(
-          TestDataDeclarative.extensionStateReceivedPayment,
-        );
+        const expectedFromThirdParty = deepCopy(TestDataDeclarative.extensionStateReceivedPayment);
         expectedFromThirdParty[
           ExtensionTypes.PAYMENT_NETWORK_ID.ANY_DECLARATIVE as string
         ].events[1].from = TestDataDeclarative.payeeDelegate;
@@ -691,7 +687,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of declareReceivedPayment without a payee', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
         previousState.payee = undefined;
         previousState.extensions[
           ExtensionTypes.PAYMENT_NETWORK_ID.ANY_DECLARATIVE as string
@@ -708,7 +704,7 @@ describe('extensions/payment-network/any/declarative', () => {
         }).toThrowError(`The request must have a payee`);
       });
       it('cannot applyActionToExtensions of declareReceivedPayment signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
+        const previousState = deepCopy(TestDataDeclarative.emptyRequestWithPayeeDelegate);
 
         expect(() => {
           pnAnyDeclarative.applyActionToExtension(
diff --git a/packages/advanced-logic/test/extensions/payment-network/erc20/address-based.test.ts b/packages/advanced-logic/test/extensions/payment-network/erc20/address-based.test.ts
index 7a8c3306c2..f55fbe41c6 100644
--- a/packages/advanced-logic/test/extensions/payment-network/erc20/address-based.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/erc20/address-based.test.ts
@@ -1,10 +1,9 @@
 import Erc20AddressBasedPaymentNetwork from '../../../../src/extensions/payment-network/erc20/address-based';
 
-import Utils from '@requestnetwork/utils';
-
 import * as DataERC20AddPaymentAddress from '../../../utils/payment-network/erc20/address-based-add-payment-address-data-generator';
 import * as DataERC20Create from '../../../utils/payment-network/erc20/address-based-create-data-generator';
 import * as TestData from '../../../utils/test-data-generator';
+import { deepCopy } from '@requestnetwork/utils';
 
 const erc20AddressBasedPaymentNetwork = new Erc20AddressBasedPaymentNetwork();
 /* eslint-disable @typescript-eslint/no-unused-expressions */
@@ -24,7 +23,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
       expect(
-        Utils.deepCopy(
+        deepCopy(
           erc20AddressBasedPaymentNetwork.createCreationAction({
             paymentAddress: DataERC20Create.paymentAddress,
           }),
@@ -35,7 +34,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
       expect(
-        Utils.deepCopy(
+        deepCopy(
           erc20AddressBasedPaymentNetwork.createCreationAction({
             refundAddress: DataERC20Create.refundAddress,
           }),
@@ -45,7 +44,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
     it('can createCreationAction with nothing', () => {
       // deep copy to remove the undefined properties to comply deep.equal()
       // 'extensionsdata is wrong'
-      expect(Utils.deepCopy(erc20AddressBasedPaymentNetwork.createCreationAction({}))).toEqual(
+      expect(deepCopy(erc20AddressBasedPaymentNetwork.createCreationAction({}))).toEqual(
         DataERC20Create.actionCreationEmpty,
       );
     });
@@ -110,7 +109,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
   describe('applyActionToExtension', () => {
     describe('applyActionToExtension/unknown action', () => {
       it('cannot applyActionToExtensions of unknown action', () => {
-        const unknownAction = Utils.deepCopy(DataERC20AddPaymentAddress.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataERC20AddPaymentAddress.actionAddPaymentAddress);
         unknownAction.action = 'unknown action' as any;
         // 'must throw'
         expect(() => {
@@ -124,7 +123,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
         }).toThrowError('Unknown action: unknown action');
       });
       it('cannot applyActionToExtensions of unknown id', () => {
-        const unknownAction = Utils.deepCopy(DataERC20AddPaymentAddress.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataERC20AddPaymentAddress.actionAddPaymentAddress);
         unknownAction.id = 'unknown id' as any;
         // 'must throw'
         expect(() => {
@@ -178,9 +177,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
       });
 
       it('cannot applyActionToExtensions of creation with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataERC20Create.actionCreationWithPaymentAndRefund,
-        );
+        const testnetPaymentAddress = deepCopy(DataERC20Create.actionCreationWithPaymentAndRefund);
         testnetPaymentAddress.parameters.paymentAddress = DataERC20AddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -197,9 +194,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
       });
 
       it('cannot applyActionToExtensions of creation with refund address not valid', () => {
-        const testnetRefundAddress = Utils.deepCopy(
-          DataERC20Create.actionCreationWithPaymentAndRefund,
-        );
+        const testnetRefundAddress = deepCopy(DataERC20Create.actionCreationWithPaymentAndRefund);
         testnetRefundAddress.parameters.refundAddress = DataERC20AddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -265,7 +260,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress without a payee', () => {
-        const previousState = Utils.deepCopy(DataERC20Create.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20Create.requestStateCreatedEmpty);
         previousState.payee = undefined;
         // 'must throw'
         expect(() => {
@@ -279,7 +274,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
         }).toThrowError(`The request must have a payee`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataERC20Create.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20Create.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           erc20AddressBasedPaymentNetwork.applyActionToExtension(
@@ -304,9 +299,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
         }).toThrowError(`Payment address already given`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataERC20AddPaymentAddress.actionAddPaymentAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataERC20AddPaymentAddress.actionAddPaymentAddress);
         testnetPaymentAddress.parameters.paymentAddress = DataERC20AddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -349,7 +342,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addRefundAddress without a payer', () => {
-        const previousState = Utils.deepCopy(DataERC20Create.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20Create.requestStateCreatedEmpty);
         previousState.payer = undefined;
         // 'must throw'
         expect(() => {
@@ -363,7 +356,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
         }).toThrowError(`The request must have a payer`);
       });
       it('cannot applyActionToExtensions of addRefundAddress signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(DataERC20Create.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20Create.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           erc20AddressBasedPaymentNetwork.applyActionToExtension(
@@ -388,9 +381,7 @@ describe('extensions/payment-network/erc20/mainnet-address-based', () => {
         }).toThrowError(`Refund address already given`);
       });
       it('cannot applyActionToExtensions of addRefundAddress with refund address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataERC20AddPaymentAddress.actionAddRefundAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataERC20AddPaymentAddress.actionAddRefundAddress);
         testnetPaymentAddress.parameters.refundAddress = DataERC20AddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
diff --git a/packages/advanced-logic/test/extensions/payment-network/erc20/fee-proxy-contract.test.ts b/packages/advanced-logic/test/extensions/payment-network/erc20/fee-proxy-contract.test.ts
index b7c0079459..824f0a3f81 100644
--- a/packages/advanced-logic/test/extensions/payment-network/erc20/fee-proxy-contract.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/erc20/fee-proxy-contract.test.ts
@@ -1,11 +1,11 @@
 import { ExtensionTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import Erc20FeeProxyContract from '../../../../src/extensions/payment-network/erc20/fee-proxy-contract';
 
 import * as DataERC20FeeAddData from '../../../utils/payment-network/erc20/fee-proxy-contract-add-data-generator';
 import * as DataERC20FeeCreate from '../../../utils/payment-network/erc20/fee-proxy-contract-create-data-generator';
 import * as TestData from '../../../utils/test-data-generator';
+import { deepCopy } from '@requestnetwork/utils';
 
 const erc20FeeProxyContract = new Erc20FeeProxyContract();
 
@@ -205,7 +205,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
   describe('applyActionToExtension', () => {
     describe('applyActionToExtension/unknown action', () => {
       it('cannot applyActionToExtensions of unknown action', () => {
-        const unknownAction = Utils.deepCopy(DataERC20FeeAddData.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataERC20FeeAddData.actionAddPaymentAddress);
         unknownAction.action = 'unknown action' as any;
         // 'must throw'
         expect(() => {
@@ -220,7 +220,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of unknown id', () => {
-        const unknownAction = Utils.deepCopy(DataERC20FeeAddData.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataERC20FeeAddData.actionAddPaymentAddress);
         unknownAction.id = 'unknown id' as any;
         // 'must throw'
         expect(() => {
@@ -263,7 +263,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of creation on a non ERC20 request', () => {
-        const requestCreatedNoExtension: RequestLogicTypes.IRequest = Utils.deepCopy(
+        const requestCreatedNoExtension: RequestLogicTypes.IRequest = deepCopy(
           TestData.requestCreatedNoExtension,
         );
         requestCreatedNoExtension.currency = {
@@ -283,7 +283,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of creation with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataERC20FeeCreate.actionCreationFull);
+        const testnetPaymentAddress = deepCopy(DataERC20FeeCreate.actionCreationFull);
         testnetPaymentAddress.parameters.paymentAddress = DataERC20FeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -300,7 +300,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of creation with refund address not valid', () => {
-        const testnetRefundAddress = Utils.deepCopy(DataERC20FeeCreate.actionCreationFull);
+        const testnetRefundAddress = deepCopy(DataERC20FeeCreate.actionCreationFull);
         testnetRefundAddress.parameters.refundAddress = DataERC20FeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -368,7 +368,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress without a payee', () => {
-        const previousState = Utils.deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
         previousState.payee = undefined;
         // 'must throw'
         expect(() => {
@@ -383,7 +383,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           erc20FeeProxyContract.applyActionToExtension(
@@ -410,7 +410,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataERC20FeeAddData.actionAddPaymentAddress);
+        const testnetPaymentAddress = deepCopy(DataERC20FeeAddData.actionAddPaymentAddress);
         testnetPaymentAddress.parameters.paymentAddress = DataERC20FeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -455,7 +455,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addRefundAddress without a payer', () => {
-        const previousState = Utils.deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
         previousState.payer = undefined;
         // 'must throw'
         expect(() => {
@@ -470,7 +470,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addRefundAddress signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           erc20FeeProxyContract.applyActionToExtension(
@@ -497,7 +497,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addRefundAddress with refund address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataERC20FeeAddData.actionAddRefundAddress);
+        const testnetPaymentAddress = deepCopy(DataERC20FeeAddData.actionAddRefundAddress);
         testnetPaymentAddress.parameters.refundAddress = DataERC20FeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -540,7 +540,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addFee without a payee', () => {
-        const previousState = Utils.deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
         previousState.payee = undefined;
         // 'must throw'
         expect(() => {
@@ -555,7 +555,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addFee signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20FeeCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           erc20FeeProxyContract.applyActionToExtension(
@@ -582,7 +582,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addFee with fee address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataERC20FeeAddData.actionAddFee);
+        const testnetPaymentAddress = deepCopy(DataERC20FeeAddData.actionAddFee);
         testnetPaymentAddress.parameters.feeAddress = DataERC20FeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -597,7 +597,7 @@ describe('extensions/payment-network/erc20/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addFee with fee amount not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataERC20FeeAddData.actionAddFee);
+        const testnetPaymentAddress = deepCopy(DataERC20FeeAddData.actionAddFee);
         testnetPaymentAddress.parameters.feeAmount = DataERC20FeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
diff --git a/packages/advanced-logic/test/extensions/payment-network/erc20/proxy-contract.test.ts b/packages/advanced-logic/test/extensions/payment-network/erc20/proxy-contract.test.ts
index 822f168fa2..af4e4e4205 100644
--- a/packages/advanced-logic/test/extensions/payment-network/erc20/proxy-contract.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/erc20/proxy-contract.test.ts
@@ -1,11 +1,11 @@
 import { ExtensionTypes, RequestLogicTypes, IdentityTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import Erc20ProxyContract from '../../../../src/extensions/payment-network/erc20/proxy-contract';
 
 import * as DataERC20AddPaymentAddress from '../../../utils/payment-network/erc20/proxy-contract-add-payment-address-data-generator';
 import * as DataERC20Create from '../../../utils/payment-network/erc20/proxy-contract-create-data-generator';
 import * as TestData from '../../../utils/test-data-generator';
+import { deepCopy } from '@requestnetwork/utils';
 
 const erc20ProxyContract = new Erc20ProxyContract();
 
@@ -125,7 +125,7 @@ describe('extensions/payment-network/erc20/proxy-contract', () => {
   describe('applyActionToExtension', () => {
     describe('applyActionToExtension/unknown action', () => {
       it('cannot applyActionToExtensions of unknown action', () => {
-        const unknownAction = Utils.deepCopy(DataERC20AddPaymentAddress.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataERC20AddPaymentAddress.actionAddPaymentAddress);
         unknownAction.action = 'unknown action' as any;
         // 'must throw'
         expect(() => {
@@ -140,7 +140,7 @@ describe('extensions/payment-network/erc20/proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of unknown id', () => {
-        const unknownAction = Utils.deepCopy(DataERC20AddPaymentAddress.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataERC20AddPaymentAddress.actionAddPaymentAddress);
         unknownAction.id = 'unknown id' as any;
         // 'must throw'
         expect(() => {
@@ -183,7 +183,7 @@ describe('extensions/payment-network/erc20/proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of creation on a not Eth request', () => {
-        const requestCreatedNoExtension: RequestLogicTypes.IRequest = Utils.deepCopy(
+        const requestCreatedNoExtension: RequestLogicTypes.IRequest = deepCopy(
           TestData.requestCreatedNoExtension,
         );
         requestCreatedNoExtension.currency = {
@@ -203,9 +203,7 @@ describe('extensions/payment-network/erc20/proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of creation with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataERC20Create.actionCreationWithPaymentAndRefund,
-        );
+        const testnetPaymentAddress = deepCopy(DataERC20Create.actionCreationWithPaymentAndRefund);
         testnetPaymentAddress.parameters.paymentAddress = DataERC20AddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -222,9 +220,7 @@ describe('extensions/payment-network/erc20/proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of creation with refund address not valid', () => {
-        const testnetRefundAddress = Utils.deepCopy(
-          DataERC20Create.actionCreationWithPaymentAndRefund,
-        );
+        const testnetRefundAddress = deepCopy(DataERC20Create.actionCreationWithPaymentAndRefund);
         testnetRefundAddress.parameters.refundAddress = DataERC20AddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -290,7 +286,7 @@ describe('extensions/payment-network/erc20/proxy-contract', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress without a payee', () => {
-        const previousState = Utils.deepCopy(DataERC20Create.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20Create.requestStateCreatedEmpty);
         previousState.payee = undefined;
         // 'must throw'
         expect(() => {
@@ -304,7 +300,7 @@ describe('extensions/payment-network/erc20/proxy-contract', () => {
         }).toThrowError(`The request must have a payee`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataERC20Create.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20Create.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           erc20ProxyContract.applyActionToExtension(
@@ -340,9 +336,7 @@ describe('extensions/payment-network/erc20/proxy-contract', () => {
         }).toThrowError(`Payment address already given`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataERC20AddPaymentAddress.actionAddPaymentAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataERC20AddPaymentAddress.actionAddPaymentAddress);
         testnetPaymentAddress.parameters.paymentAddress = DataERC20AddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -385,7 +379,7 @@ describe('extensions/payment-network/erc20/proxy-contract', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addRefundAddress without a payer', () => {
-        const previousState = Utils.deepCopy(DataERC20Create.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20Create.requestStateCreatedEmpty);
         previousState.payer = undefined;
         // 'must throw'
         expect(() => {
@@ -399,7 +393,7 @@ describe('extensions/payment-network/erc20/proxy-contract', () => {
         }).toThrowError(`The request must have a payer`);
       });
       it('cannot applyActionToExtensions of addRefundAddress signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(DataERC20Create.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataERC20Create.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           erc20ProxyContract.applyActionToExtension(
@@ -424,9 +418,7 @@ describe('extensions/payment-network/erc20/proxy-contract', () => {
         }).toThrowError(`Refund address already given`);
       });
       it('cannot applyActionToExtensions of addRefundAddress with refund address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataERC20AddPaymentAddress.actionAddRefundAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataERC20AddPaymentAddress.actionAddRefundAddress);
         testnetPaymentAddress.parameters.refundAddress = DataERC20AddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
diff --git a/packages/advanced-logic/test/extensions/payment-network/erc777/stream.test.ts b/packages/advanced-logic/test/extensions/payment-network/erc777/stream.test.ts
index d45766ad10..640eec5547 100644
--- a/packages/advanced-logic/test/extensions/payment-network/erc777/stream.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/erc777/stream.test.ts
@@ -1,5 +1,5 @@
 import { ExtensionTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 import Erc777StreamPaymentNetwork from '../../../../src/extensions/payment-network/erc777/stream';
 
@@ -88,7 +88,7 @@ describe('extensions/payment-network/erc777/stream', () => {
     describe('applyActionToExtension', () => {
       describe('applyActionToExtension/unknown action', () => {
         it('cannot applyActionToExtensions of unknown action', () => {
-          const unknownAction = Utils.deepCopy(DataERC777StreamAddData.actionAddPaymentAddress);
+          const unknownAction = deepCopy(DataERC777StreamAddData.actionAddPaymentAddress);
           unknownAction.action = 'unknown action' as any;
           // 'must throw'
           expect(() => {
@@ -103,7 +103,7 @@ describe('extensions/payment-network/erc777/stream', () => {
         });
 
         it('cannot applyActionToExtensions of unknown id', () => {
-          const unknownAction = Utils.deepCopy(DataERC777StreamAddData.actionAddPaymentAddress);
+          const unknownAction = deepCopy(DataERC777StreamAddData.actionAddPaymentAddress);
           unknownAction.id = 'unknown id' as any;
           // 'must throw'
           expect(() => {
@@ -146,7 +146,7 @@ describe('extensions/payment-network/erc777/stream', () => {
         });
 
         it('cannot applyActionToExtensions of creation on a non ERC777 request', () => {
-          const requestCreatedNoExtension: RequestLogicTypes.IRequest = Utils.deepCopy(
+          const requestCreatedNoExtension: RequestLogicTypes.IRequest = deepCopy(
             TestData.requestCreatedNoExtension,
           );
           requestCreatedNoExtension.currency = {
@@ -166,7 +166,7 @@ describe('extensions/payment-network/erc777/stream', () => {
         });
 
         it('cannot applyActionToExtensions of creation with payment address not valid', () => {
-          const testnetPaymentAddress = Utils.deepCopy(DataERC777StreamCreate.actionCreationFull);
+          const testnetPaymentAddress = deepCopy(DataERC777StreamCreate.actionCreationFull);
           testnetPaymentAddress.parameters.paymentAddress = DataERC777StreamAddData.invalidAddress;
           // 'must throw'
           expect(() => {
@@ -183,7 +183,7 @@ describe('extensions/payment-network/erc777/stream', () => {
         });
 
         it('cannot applyActionToExtensions of creation with refund address not valid', () => {
-          const testnetRefundAddress = Utils.deepCopy(DataERC777StreamCreate.actionCreationFull);
+          const testnetRefundAddress = deepCopy(DataERC777StreamCreate.actionCreationFull);
           testnetRefundAddress.parameters.refundAddress = DataERC777StreamAddData.invalidAddress;
           // 'must throw'
           expect(() => {
@@ -251,7 +251,7 @@ describe('extensions/payment-network/erc777/stream', () => {
         });
 
         it('cannot applyActionToExtensions of addPaymentAddress without a payee', () => {
-          const previousState = Utils.deepCopy(DataERC777StreamCreate.requestStateCreatedEmpty);
+          const previousState = deepCopy(DataERC777StreamCreate.requestStateCreatedEmpty);
           previousState.payee = undefined;
           // 'must throw'
           expect(() => {
@@ -266,7 +266,7 @@ describe('extensions/payment-network/erc777/stream', () => {
         });
 
         it('cannot applyActionToExtensions of addPaymentAddress signed by someone else than the payee', () => {
-          const previousState = Utils.deepCopy(DataERC777StreamCreate.requestStateCreatedEmpty);
+          const previousState = deepCopy(DataERC777StreamCreate.requestStateCreatedEmpty);
           // 'must throw'
           expect(() => {
             erc777StreamPaymentNetwork.applyActionToExtension(
@@ -293,9 +293,7 @@ describe('extensions/payment-network/erc777/stream', () => {
         });
 
         it('cannot applyActionToExtensions of addPaymentAddress with payment address not valid', () => {
-          const testnetPaymentAddress = Utils.deepCopy(
-            DataERC777StreamAddData.actionAddPaymentAddress,
-          );
+          const testnetPaymentAddress = deepCopy(DataERC777StreamAddData.actionAddPaymentAddress);
           testnetPaymentAddress.parameters.paymentAddress = DataERC777StreamAddData.invalidAddress;
           // 'must throw'
           expect(() => {
@@ -340,7 +338,7 @@ describe('extensions/payment-network/erc777/stream', () => {
         });
 
         it('cannot applyActionToExtensions of addRefundAddress without a payer', () => {
-          const previousState = Utils.deepCopy(DataERC777StreamCreate.requestStateCreatedEmpty);
+          const previousState = deepCopy(DataERC777StreamCreate.requestStateCreatedEmpty);
           previousState.payer = undefined;
           // 'must throw'
           expect(() => {
@@ -355,7 +353,7 @@ describe('extensions/payment-network/erc777/stream', () => {
         });
 
         it('cannot applyActionToExtensions of addRefundAddress signed by someone else than the payer', () => {
-          const previousState = Utils.deepCopy(DataERC777StreamCreate.requestStateCreatedEmpty);
+          const previousState = deepCopy(DataERC777StreamCreate.requestStateCreatedEmpty);
           // 'must throw'
           expect(() => {
             erc777StreamPaymentNetwork.applyActionToExtension(
@@ -382,9 +380,7 @@ describe('extensions/payment-network/erc777/stream', () => {
         });
 
         it('cannot applyActionToExtensions of addRefundAddress with refund address not valid', () => {
-          const testnetPaymentAddress = Utils.deepCopy(
-            DataERC777StreamAddData.actionAddRefundAddress,
-          );
+          const testnetPaymentAddress = deepCopy(DataERC777StreamAddData.actionAddRefundAddress);
           testnetPaymentAddress.parameters.refundAddress = DataERC777StreamAddData.invalidAddress;
           // 'must throw'
           expect(() => {
diff --git a/packages/advanced-logic/test/extensions/payment-network/ethereum/fee-proxy-contract.test.ts b/packages/advanced-logic/test/extensions/payment-network/ethereum/fee-proxy-contract.test.ts
index 226c27f6e7..8bfd5557b7 100644
--- a/packages/advanced-logic/test/extensions/payment-network/ethereum/fee-proxy-contract.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/ethereum/fee-proxy-contract.test.ts
@@ -1,11 +1,11 @@
 import { ExtensionTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import EthereumFeeProxyContract from '../../../../src/extensions/payment-network/ethereum/fee-proxy-contract';
 
 import * as DataEthFeeAddData from '../../../utils/payment-network/ethereum/fee-proxy-contract-add-data-generator';
 import * as DataEthFeeCreate from '../../../utils/payment-network/ethereum/fee-proxy-contract-create-data-generator';
 import * as TestData from '../../../utils/test-data-generator';
+import { deepCopy } from '@requestnetwork/utils';
 
 const ethFeeProxyContract = new EthereumFeeProxyContract();
 
@@ -205,7 +205,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
   describe('applyActionToExtension', () => {
     describe('applyActionToExtension/unknown action', () => {
       it('cannot applyActionToExtensions of unknown action', () => {
-        const unknownAction = Utils.deepCopy(DataEthFeeAddData.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataEthFeeAddData.actionAddPaymentAddress);
         unknownAction.action = 'unknown action' as any;
         // 'must throw'
         expect(() => {
@@ -220,7 +220,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of unknown id', () => {
-        const unknownAction = Utils.deepCopy(DataEthFeeAddData.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataEthFeeAddData.actionAddPaymentAddress);
         unknownAction.id = 'unknown id' as any;
         // 'must throw'
         expect(() => {
@@ -263,7 +263,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of creation on a non ETH request', () => {
-        const requestCreatedNoExtension: RequestLogicTypes.IRequest = Utils.deepCopy(
+        const requestCreatedNoExtension: RequestLogicTypes.IRequest = deepCopy(
           TestData.requestCreatedNoExtension,
         );
         requestCreatedNoExtension.currency = {
@@ -283,7 +283,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of creation with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataEthFeeCreate.actionCreationFull);
+        const testnetPaymentAddress = deepCopy(DataEthFeeCreate.actionCreationFull);
         testnetPaymentAddress.parameters.paymentAddress = DataEthFeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -300,7 +300,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of creation with refund address not valid', () => {
-        const testnetRefundAddress = Utils.deepCopy(DataEthFeeCreate.actionCreationFull);
+        const testnetRefundAddress = deepCopy(DataEthFeeCreate.actionCreationFull);
         testnetRefundAddress.parameters.refundAddress = DataEthFeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -368,7 +368,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress without a payee', () => {
-        const previousState = Utils.deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
         previousState.payee = undefined;
         // 'must throw'
         expect(() => {
@@ -383,7 +383,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           ethFeeProxyContract.applyActionToExtension(
@@ -410,7 +410,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addPaymentAddress with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataEthFeeAddData.actionAddPaymentAddress);
+        const testnetPaymentAddress = deepCopy(DataEthFeeAddData.actionAddPaymentAddress);
         testnetPaymentAddress.parameters.paymentAddress = DataEthFeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -455,7 +455,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addRefundAddress without a payer', () => {
-        const previousState = Utils.deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
         previousState.payer = undefined;
         // 'must throw'
         expect(() => {
@@ -470,7 +470,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addRefundAddress signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           ethFeeProxyContract.applyActionToExtension(
@@ -497,7 +497,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addRefundAddress with refund address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataEthFeeAddData.actionAddRefundAddress);
+        const testnetPaymentAddress = deepCopy(DataEthFeeAddData.actionAddRefundAddress);
         testnetPaymentAddress.parameters.refundAddress = DataEthFeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -540,7 +540,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addFee without a payee', () => {
-        const previousState = Utils.deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
         previousState.payee = undefined;
         // 'must throw'
         expect(() => {
@@ -555,7 +555,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addFee signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataEthFeeCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           ethFeeProxyContract.applyActionToExtension(
@@ -582,7 +582,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addFee with fee address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataEthFeeAddData.actionAddFee);
+        const testnetPaymentAddress = deepCopy(DataEthFeeAddData.actionAddFee);
         testnetPaymentAddress.parameters.feeAddress = DataEthFeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -597,7 +597,7 @@ describe('extensions/payment-network/ethereum/fee-proxy-contract', () => {
       });
 
       it('cannot applyActionToExtensions of addFee with fee amount not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(DataEthFeeAddData.actionAddFee);
+        const testnetPaymentAddress = deepCopy(DataEthFeeAddData.actionAddFee);
         testnetPaymentAddress.parameters.feeAmount = DataEthFeeAddData.invalidAddress;
         // 'must throw'
         expect(() => {
diff --git a/packages/advanced-logic/test/extensions/payment-network/ethereum/input-data.test.ts b/packages/advanced-logic/test/extensions/payment-network/ethereum/input-data.test.ts
index dba01e5d3d..a29f0e2d76 100644
--- a/packages/advanced-logic/test/extensions/payment-network/ethereum/input-data.test.ts
+++ b/packages/advanced-logic/test/extensions/payment-network/ethereum/input-data.test.ts
@@ -1,5 +1,5 @@
 import { ExtensionTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 import EthereumInputDataPaymentNetwork from '../../../../src/extensions/payment-network/ethereum/input-data';
 
@@ -125,7 +125,7 @@ describe('extensions/payment-network/ethereum/input-data', () => {
   describe('applyActionToExtension', () => {
     describe('applyActionToExtension/unknown action', () => {
       it('cannot applyActionToExtensions of unknown action', () => {
-        const unknownAction = Utils.deepCopy(DataEthAddPaymentAddress.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataEthAddPaymentAddress.actionAddPaymentAddress);
         unknownAction.action = 'unknown action' as any;
         // 'must throw'
         expect(() => {
@@ -140,7 +140,7 @@ describe('extensions/payment-network/ethereum/input-data', () => {
       });
 
       it('cannot applyActionToExtensions of unknown id', () => {
-        const unknownAction = Utils.deepCopy(DataEthAddPaymentAddress.actionAddPaymentAddress);
+        const unknownAction = deepCopy(DataEthAddPaymentAddress.actionAddPaymentAddress);
         unknownAction.id = 'unknown id' as any;
         // 'must throw'
         expect(() => {
@@ -183,7 +183,7 @@ describe('extensions/payment-network/ethereum/input-data', () => {
       });
 
       it('cannot applyActionToExtensions of creation on a not Eth request', () => {
-        const requestCreatedNoExtension: RequestLogicTypes.IRequest = Utils.deepCopy(
+        const requestCreatedNoExtension: RequestLogicTypes.IRequest = deepCopy(
           TestData.requestCreatedNoExtension,
         );
         requestCreatedNoExtension.currency = {
@@ -203,9 +203,7 @@ describe('extensions/payment-network/ethereum/input-data', () => {
       });
 
       it('cannot applyActionToExtensions of creation with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataEthCreate.actionCreationWithPaymentAndRefund,
-        );
+        const testnetPaymentAddress = deepCopy(DataEthCreate.actionCreationWithPaymentAndRefund);
         testnetPaymentAddress.parameters.paymentAddress = DataEthAddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -222,9 +220,7 @@ describe('extensions/payment-network/ethereum/input-data', () => {
       });
 
       it('cannot applyActionToExtensions of creation with refund address not valid', () => {
-        const testnetRefundAddress = Utils.deepCopy(
-          DataEthCreate.actionCreationWithPaymentAndRefund,
-        );
+        const testnetRefundAddress = deepCopy(DataEthCreate.actionCreationWithPaymentAndRefund);
         testnetRefundAddress.parameters.refundAddress = DataEthAddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -290,7 +286,7 @@ describe('extensions/payment-network/ethereum/input-data', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress without a payee', () => {
-        const previousState = Utils.deepCopy(DataEthCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataEthCreate.requestStateCreatedEmpty);
         previousState.payee = undefined;
         // 'must throw'
         expect(() => {
@@ -304,7 +300,7 @@ describe('extensions/payment-network/ethereum/input-data', () => {
         }).toThrowError(`The request must have a payee`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress signed by someone else than the payee', () => {
-        const previousState = Utils.deepCopy(DataEthCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataEthCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           ethereumInputDataPaymentNetwork.applyActionToExtension(
@@ -329,9 +325,7 @@ describe('extensions/payment-network/ethereum/input-data', () => {
         }).toThrowError(`Payment address already given`);
       });
       it('cannot applyActionToExtensions of addPaymentAddress with payment address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataEthAddPaymentAddress.actionAddPaymentAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataEthAddPaymentAddress.actionAddPaymentAddress);
         testnetPaymentAddress.parameters.paymentAddress = DataEthAddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
@@ -374,7 +368,7 @@ describe('extensions/payment-network/ethereum/input-data', () => {
         }).toThrowError(`The extension should be created before receiving any other action`);
       });
       it('cannot applyActionToExtensions of addRefundAddress without a payer', () => {
-        const previousState = Utils.deepCopy(DataEthCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataEthCreate.requestStateCreatedEmpty);
         previousState.payer = undefined;
         // 'must throw'
         expect(() => {
@@ -388,7 +382,7 @@ describe('extensions/payment-network/ethereum/input-data', () => {
         }).toThrowError(`The request must have a payer`);
       });
       it('cannot applyActionToExtensions of addRefundAddress signed by someone else than the payer', () => {
-        const previousState = Utils.deepCopy(DataEthCreate.requestStateCreatedEmpty);
+        const previousState = deepCopy(DataEthCreate.requestStateCreatedEmpty);
         // 'must throw'
         expect(() => {
           ethereumInputDataPaymentNetwork.applyActionToExtension(
@@ -413,9 +407,7 @@ describe('extensions/payment-network/ethereum/input-data', () => {
         }).toThrowError(`Refund address already given`);
       });
       it('cannot applyActionToExtensions of addRefundAddress with refund address not valid', () => {
-        const testnetPaymentAddress = Utils.deepCopy(
-          DataEthAddPaymentAddress.actionAddRefundAddress,
-        );
+        const testnetPaymentAddress = deepCopy(DataEthAddPaymentAddress.actionAddRefundAddress);
         testnetPaymentAddress.parameters.refundAddress = DataEthAddPaymentAddress.invalidAddress;
         // 'must throw'
         expect(() => {
diff --git a/packages/currency/src/getHash.ts b/packages/currency/src/getHash.ts
index de53e5a98e..66e970df6b 100644
--- a/packages/currency/src/getHash.ts
+++ b/packages/currency/src/getHash.ts
@@ -1,11 +1,11 @@
 import { RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { last20bytesOfNormalizedKeccak256Hash } from '@requestnetwork/utils';
 
 export const getHash = (curr: RequestLogicTypes.ICurrency): string => {
   return curr.type === RequestLogicTypes.CURRENCY.ERC20 ||
     curr.type === RequestLogicTypes.CURRENCY.ERC777
     ? curr.value
-    : Utils.crypto.last20bytesOfNormalizedKeccak256Hash({
+    : last20bytesOfNormalizedKeccak256Hash({
         type: curr.type,
         value: curr.value,
         // FIXME network should be included for native tokens.
diff --git a/packages/data-access/src/block.ts b/packages/data-access/src/block.ts
index 4232f5dd66..b12f63de09 100644
--- a/packages/data-access/src/block.ts
+++ b/packages/data-access/src/block.ts
@@ -1,6 +1,6 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { DataAccessTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 /**
  * Module to manage a block in the data access-layer
@@ -125,7 +125,7 @@ function pushTransaction(
     throw new Error('The transaction is missing the data property or encryptedData property');
   }
   // we don't want to modify the original block state
-  const copiedBlock: DataAccessTypes.IBlock = Utils.deepCopy(block);
+  const copiedBlock: DataAccessTypes.IBlock = deepCopy(block);
 
   const newTransactionPosition = copiedBlock.transactions.length;
   copiedBlock.transactions.push(transaction);
diff --git a/packages/data-access/src/data-access.ts b/packages/data-access/src/data-access.ts
index df9ddf8728..47a961b898 100644
--- a/packages/data-access/src/data-access.ts
+++ b/packages/data-access/src/data-access.ts
@@ -1,6 +1,6 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { DataAccessTypes, LogTypes, StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy, getCurrentTimestampInSecond, SimpleLogger, unique } from '@requestnetwork/utils';
 
 import * as Bluebird from 'bluebird';
 import { EventEmitter } from 'events';
@@ -96,7 +96,7 @@ export default class DataAccess implements DataAccessTypes.IDataAccess {
   public constructor(storage: StorageTypes.IStorage, options?: Partial<IDataAccessOptions>) {
     const defaultOptions: IDataAccessOptions = {
       ignoredLocationIndex: new IgnoredLocationIndex(),
-      logger: new Utils.SimpleLogger(),
+      logger: new SimpleLogger(),
       synchronizationIntervalTime: DEFAULT_INTERVAL_TIME,
       transactionIndex: new TransactionIndex(),
       autoStartSynchronization: false,
@@ -140,7 +140,7 @@ export default class DataAccess implements DataAccessTypes.IDataAccess {
 
     // if transaction index already has data, then sync from the last available timestamp
     const lastSynced = await this.transactionIndex.getLastTransactionTimestamp();
-    const now = Utils.getCurrentTimestampInSecond();
+    const now = getCurrentTimestampInSecond();
 
     // initialize the dataId topic with the previous block
     const allDataWithMeta = await this.storage.getData(
@@ -368,7 +368,7 @@ export default class DataAccess implements DataAccessTypes.IDataAccess {
         channelIdAndTransactions.transactionsWithMeta.result.transactions;
 
       return finalResult;
-    }, Utils.deepCopy(emptyChannelsWithTopics));
+    }, deepCopy(emptyChannelsWithTopics));
   }
 
   /**
@@ -420,7 +420,7 @@ export default class DataAccess implements DataAccessTypes.IDataAccess {
         channelIdAndTransactions.transactionsWithMeta.result.transactions;
 
       return finalResult;
-    }, Utils.deepCopy(emptyChannelsWithTopics));
+    }, deepCopy(emptyChannelsWithTopics));
   }
 
   /**
@@ -428,7 +428,7 @@ export default class DataAccess implements DataAccessTypes.IDataAccess {
    */
   public async synchronizeNewDataIds(): Promise<void> {
     this.checkInitialized();
-    const synchronizationTo = Utils.getCurrentTimestampInSecond();
+    const synchronizationTo = getCurrentTimestampInSecond();
 
     // We increment lastSyncStorageTimestamp because the data located at lastSyncStorageTimestamp
     // 0 means it's the first synchronization
@@ -592,7 +592,7 @@ export default class DataAccess implements DataAccessTypes.IDataAccess {
     // Gets the transaction from the positions
     const transactions: DataAccessTypes.ITimestampedTransaction[] =
       // first remove de duplicates
-      Utils.unique(transactionPositions).uniqueItems.map(
+      unique(transactionPositions).uniqueItems.map(
         // Get the transaction from their position and add the timestamp
         (position: number) => ({
           state:
diff --git a/packages/data-access/src/transaction-index/location-by-topic.ts b/packages/data-access/src/transaction-index/location-by-topic.ts
index 93c6263848..c84cc6d84d 100644
--- a/packages/data-access/src/transaction-index/location-by-topic.ts
+++ b/packages/data-access/src/transaction-index/location-by-topic.ts
@@ -1,7 +1,7 @@
 import { DataAccessTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import * as Keyv from 'keyv';
+import { flatten2DimensionsArray, unique } from '@requestnetwork/utils';
 
 // Serialize function used for keyv to serialize a Set data structure into a string
 // There is no way to directly stringify a Set, we need to convert it to an array before
@@ -105,7 +105,7 @@ export default class LocationByTopicTransactionIndex {
     const channelIds = await Promise.all(channelIdsPromises);
 
     // flatten the array of array and remove the duplicates
-    return Utils.unique(Utils.flatten2DimensionsArray(channelIds)).uniqueItems;
+    return unique(flatten2DimensionsArray(channelIds)).uniqueItems;
   }
   /**
    * Function to get storage locations from a channel id
diff --git a/packages/docs/docs/guides/2-request-client/6-signature-provider.md b/packages/docs/docs/guides/2-request-client/6-signature-provider.md
index e293092f31..534477d0d3 100644
--- a/packages/docs/docs/guides/2-request-client/6-signature-provider.md
+++ b/packages/docs/docs/guides/2-request-client/6-signature-provider.md
@@ -37,7 +37,7 @@ Your signature provider would look like:
 
 ```typescript
 import { IdentityTypes, SignatureProviderTypes, SignatureTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 // Your package
 import mySignaturePackage from 'mySignaturePackage';
@@ -68,7 +68,7 @@ export default class MySignatureProvider implements SignatureProviderTypes.ISign
     }
 
     // Hash the normalized data (e.g. avoid case sensitivity)
-    const hashData = Utils.crypto.normalizeKeccak256Hash(data).value;
+    const hashData = normalizeKeccak256Hash(data).value;
 
     // use your signature package
     const signatureValue = mySignaturePackage.sign(hashData, signer.value);
@@ -118,7 +118,7 @@ Your signature provider would look like:
 
 ```typescript
 import { IdentityTypes, SignatureProviderTypes, SignatureTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 // Your package
 import mySignaturePackage from 'mySignaturePackage';
@@ -170,7 +170,7 @@ export default class MySignatureProvider implements SignatureProviderTypes.ISign
     }
 
     // Hash the normalized data (e.g. avoid case sensitivity)
-    const hashData = Utils.crypto.normalizeKeccak256Hash(data).value;
+    const hashData = normalizeKeccak256Hash(data).value;
 
     // convert the hash from a string '0x...' to a Buffer
     const hashDataBuffer = Buffer.from(hashData.slice(2), 'hex');
diff --git a/packages/epk-decryption/src/ethereum-private-key-decryption-provider.ts b/packages/epk-decryption/src/ethereum-private-key-decryption-provider.ts
index 974fec219b..4a35c595ac 100644
--- a/packages/epk-decryption/src/ethereum-private-key-decryption-provider.ts
+++ b/packages/epk-decryption/src/ethereum-private-key-decryption-provider.ts
@@ -1,6 +1,6 @@
 import { DecryptionProviderTypes, EncryptionTypes, IdentityTypes } from '@requestnetwork/types';
 
-import Utils from '@requestnetwork/utils';
+import { decrypt, getAddressFromPrivateKey } from '@requestnetwork/utils';
 
 /** Type of the dictionary of decryptionParameters (private keys) indexed by ethereum address */
 type IDecryptionParametersDictionary = Map<string, EncryptionTypes.IDecryptionParameters>;
@@ -55,7 +55,7 @@ export default class EthereumPrivateKeyDecryptionProvider
       throw Error(`private key unknown for the identity: ${identity.value}`);
     }
 
-    return Utils.encryption.decrypt(encryptedData, decryptionParameters);
+    return decrypt(encryptedData, decryptionParameters);
   }
 
   /**
@@ -87,9 +87,7 @@ export default class EthereumPrivateKeyDecryptionProvider
 
     // compute the address from private key
     // toLowerCase to avoid mismatch because of case
-    const address = Utils.crypto.EcUtils.getAddressFromPrivateKey(
-      decryptionParameters.key,
-    ).toLowerCase();
+    const address = getAddressFromPrivateKey(decryptionParameters.key).toLowerCase();
 
     this.decryptionParametersDictionary.set(address, decryptionParameters);
 
diff --git a/packages/epk-decryption/test/ethereum-private-key-decryption-provider.test.ts b/packages/epk-decryption/test/ethereum-private-key-decryption-provider.test.ts
index 7869098246..da11831808 100644
--- a/packages/epk-decryption/test/ethereum-private-key-decryption-provider.test.ts
+++ b/packages/epk-decryption/test/ethereum-private-key-decryption-provider.test.ts
@@ -1,7 +1,7 @@
 import { EncryptionTypes, IdentityTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import EthereumPrivateKeyDecryptionProvider from '../src/ethereum-private-key-decryption-provider';
+import { encrypt } from '@requestnetwork/utils';
 
 export const id1Raw = {
   address: '0xaf083f77f1ffd54218d91491afd06c9296eac3ce',
@@ -153,10 +153,7 @@ describe('ethereum-private-key-decryption-provider', () => {
 
   describe('decrypt', () => {
     it('can decrypt', async () => {
-      const encryptedData = await Utils.encryption.encrypt(
-        decryptedDataExpected,
-        id1Raw.encryptionParams,
-      );
+      const encryptedData = await encrypt(decryptedDataExpected, id1Raw.encryptionParams);
 
       const decryptionProvider = new EthereumPrivateKeyDecryptionProvider(id1Raw.decryptionParams);
 
@@ -179,10 +176,7 @@ describe('ethereum-private-key-decryption-provider', () => {
     });
 
     it('cannot decrypt if identity not supported', async () => {
-      const encryptedData = await Utils.encryption.encrypt(
-        decryptedDataExpected,
-        id1Raw.encryptionParams,
-      );
+      const encryptedData = await encrypt(decryptedDataExpected, id1Raw.encryptionParams);
       const decryptionProvider = new EthereumPrivateKeyDecryptionProvider(id1Raw.decryptionParams);
 
       const arbitraryIdentity: any = { type: 'unknown type', value: '0x000' };
@@ -192,10 +186,7 @@ describe('ethereum-private-key-decryption-provider', () => {
     });
 
     it('cannot decrypt if private key of the identity not given', async () => {
-      const encryptedData = await Utils.encryption.encrypt(
-        decryptedDataExpected,
-        id1Raw.encryptionParams,
-      );
+      const encryptedData = await encrypt(decryptedDataExpected, id1Raw.encryptionParams);
       const decryptionProvider = new EthereumPrivateKeyDecryptionProvider(id1Raw.decryptionParams);
 
       const arbitraryIdentity: IdentityTypes.IIdentity = {
diff --git a/packages/epk-signature/src/ethereum-private-key-signature-provider.ts b/packages/epk-signature/src/ethereum-private-key-signature-provider.ts
index 3991ac1051..8643360bf0 100644
--- a/packages/epk-signature/src/ethereum-private-key-signature-provider.ts
+++ b/packages/epk-signature/src/ethereum-private-key-signature-provider.ts
@@ -1,6 +1,6 @@
 import { IdentityTypes, SignatureProviderTypes, SignatureTypes } from '@requestnetwork/types';
 
-import Utils from '@requestnetwork/utils';
+import { ecSign, getAddressFromPrivateKey, normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 /** Type of the dictionary of signatureParameters (private keys) indexed by ethereum address */
 type ISignatureParametersDictionary = Map<string, SignatureTypes.ISignatureParameters>;
@@ -55,8 +55,8 @@ export default class EthereumPrivateKeySignatureProvider
     }
 
     // the hash format in request start by 01 but the ec-utils need a hash starting by 0x
-    const hashData = Utils.crypto.normalizeKeccak256Hash(data).value;
-    const signatureValue = Utils.crypto.EcUtils.sign(signatureParameter.privateKey, hashData);
+    const hashData = normalizeKeccak256Hash(data).value;
+    const signatureValue = ecSign(signatureParameter.privateKey, hashData);
 
     return {
       data,
@@ -83,9 +83,7 @@ export default class EthereumPrivateKeySignatureProvider
 
     // compute the address from private key
     // toLowerCase to avoid mismatch because of case
-    const address = Utils.crypto.EcUtils.getAddressFromPrivateKey(
-      signatureParams.privateKey,
-    ).toLowerCase();
+    const address = getAddressFromPrivateKey(signatureParams.privateKey).toLowerCase();
 
     this.signatureParametersDictionary.set(address, signatureParams);
 
diff --git a/packages/epk-signature/test/ethereum-private-key-signature-provider.test.ts b/packages/epk-signature/test/ethereum-private-key-signature-provider.test.ts
index fbf75dc8ff..5f2c001f05 100644
--- a/packages/epk-signature/test/ethereum-private-key-signature-provider.test.ts
+++ b/packages/epk-signature/test/ethereum-private-key-signature-provider.test.ts
@@ -1,8 +1,7 @@
 import { IdentityTypes, SignatureTypes } from '@requestnetwork/types';
 
 import EthereumPrivateKeySignatureProvider from '../src/ethereum-private-key-signature-provider';
-
-import Utils from '@requestnetwork/utils';
+import { ecSign, normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 const id1Raw = {
   address: '0xaf083f77f1ffd54218d91491afd06c9296eac3ce',
@@ -35,8 +34,8 @@ export const id2Raw = {
 };
 
 const data = { What: 'ever', the: 'data', are: true };
-const hashData = Utils.crypto.normalizeKeccak256Hash(data).value;
-const signatureValueExpected = Utils.crypto.EcUtils.sign(id1Raw.privateKey, hashData);
+const hashData = normalizeKeccak256Hash(data).value;
+const signatureValueExpected = ecSign(id1Raw.privateKey, hashData);
 const signedDataExpected = {
   data,
   signature: {
diff --git a/packages/ethereum-storage/src/ethereum-blocks.ts b/packages/ethereum-storage/src/ethereum-blocks.ts
index 249d695099..01623fe035 100644
--- a/packages/ethereum-storage/src/ethereum-blocks.ts
+++ b/packages/ethereum-storage/src/ethereum-blocks.ts
@@ -1,5 +1,5 @@
 import { LogTypes, StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { cachedThrottle, retry, SimpleLogger } from '@requestnetwork/utils';
 
 /**
  * Manages every info linked to the ethereum blocks (blockNumber, blockTimestamp, confirmations ... )
@@ -61,16 +61,16 @@ export default class EthereumBlocks {
 
     this.getLastBlockNumberMinDelay = getLastBlockNumberMinDelay;
 
-    this.logger = logger || new Utils.SimpleLogger();
+    this.logger = logger || new SimpleLogger();
 
     // Get retry parameter values from config
     this.retryDelay = retryDelay;
     this.maxRetries = maxRetries;
 
     // Setup the throttled and retriable getLastBlockNumber function
-    this.getLastBlockNumber = Utils.cachedThrottle(
+    this.getLastBlockNumber = cachedThrottle(
       () =>
-        Utils.retry(
+        retry(
           () => {
             this.logger.debug(`Getting last block number`, ['ethereum', 'ethereum-blocks']);
             return this.eth.getBlockNumber();
@@ -96,8 +96,8 @@ export default class EthereumBlocks {
     }
 
     // if we don't know the information, let's get it
-    // Use Utils.retry to rerun if getBlock fails
-    const block = await Utils.retry((bn: number) => this.eth.getBlock(bn), {
+    // Use retry to rerun if getBlock fails
+    const block = await retry((bn: number) => this.eth.getBlock(bn), {
       maxRetries: this.maxRetries,
       retryDelay: this.retryDelay,
     })(blockNumber);
@@ -194,7 +194,7 @@ export default class EthereumBlocks {
    * @returns An Ethereum block
    */
   public async getBlock(blockNumber: number | string): Promise<any> {
-    return Utils.retry(this.eth.getBlock, {
+    return retry(this.eth.getBlock, {
       context: this.eth,
       maxRetries: this.maxRetries,
       retryDelay: this.retryDelay,
diff --git a/packages/ethereum-storage/src/ethereum-storage-ethers.ts b/packages/ethereum-storage/src/ethereum-storage-ethers.ts
index c7a6878867..05e7737ddc 100644
--- a/packages/ethereum-storage/src/ethereum-storage-ethers.ts
+++ b/packages/ethereum-storage/src/ethereum-storage-ethers.ts
@@ -1,10 +1,10 @@
 import { EventEmitter } from 'events';
 import { BigNumber, ContractReceipt, providers, Signer } from 'ethers';
 import TypedEmitter from 'typed-emitter';
-import Utils from '@requestnetwork/utils';
 import { LogTypes, StorageTypes } from '@requestnetwork/types';
 import { requestHashSubmitterArtifact } from '@requestnetwork/smart-contracts';
 import { EthereumTransactionSubmitter } from './ethereum-tx-submitter';
+import { getCurrentTimestampInSecond, SimpleLogger } from '@requestnetwork/utils';
 
 export type GasDefinerProps = {
   gasPriceMin?: BigNumber;
@@ -33,7 +33,7 @@ export class EthereumStorageEthers implements StorageTypes.IStorageWrite {
   private readonly txSubmitter: EthereumTransactionSubmitter;
 
   constructor({ network, signer, ipfsStorage, logger, gasPriceMin }: StorageProps) {
-    this.logger = logger || new Utils.SimpleLogger();
+    this.logger = logger || new SimpleLogger();
     this.ipfsStorage = ipfsStorage;
     this.network = network;
     this.txSubmitter = new EthereumTransactionSubmitter({ network, signer, logger, gasPriceMin });
@@ -68,7 +68,7 @@ export class EthereumStorageEthers implements StorageTypes.IStorageWrite {
         },
         state: StorageTypes.ContentState.PENDING,
         storageType: StorageTypes.StorageSystemType.LOCAL,
-        timestamp: Utils.getCurrentTimestampInSecond(),
+        timestamp: getCurrentTimestampInSecond(),
       },
     };
 
diff --git a/packages/ethereum-storage/src/ethereum-storage.ts b/packages/ethereum-storage/src/ethereum-storage.ts
index e38eed5dda..52180f5bf5 100644
--- a/packages/ethereum-storage/src/ethereum-storage.ts
+++ b/packages/ethereum-storage/src/ethereum-storage.ts
@@ -1,5 +1,4 @@
 import { LogTypes, StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import * as Bluebird from 'bluebird';
 import { EventEmitter } from 'events';
 import { getMaxConcurrency } from './config';
@@ -11,6 +10,7 @@ import SmartContractManager from './smart-contract-manager';
 
 import * as Keyv from 'keyv';
 import { BigNumber } from 'ethers';
+import { getCurrentTimestampInSecond, SimpleLogger } from '@requestnetwork/utils';
 
 // time to wait before considering the web3 provider is not reachable
 const WEB3_PROVIDER_TIMEOUT = 10000;
@@ -90,7 +90,7 @@ export class EthereumStorage implements StorageTypes.IStorage {
     metadataStore?: Keyv.Store<any>,
   ) {
     this.maxConcurrency = maxConcurrency || getMaxConcurrency();
-    this.logger = logger || new Utils.SimpleLogger();
+    this.logger = logger || new SimpleLogger();
     this.ipfsStorage = ipfsStorage;
     this.smartContractManager = new SmartContractManager(web3Connection, {
       getLastBlockNumberDelay,
@@ -167,7 +167,7 @@ export class EthereumStorage implements StorageTypes.IStorage {
 
     const { ipfsHash, ipfsSize } = await this.ipfsStorage.ipfsAdd(content);
 
-    const timestamp = Utils.getCurrentTimestampInSecond();
+    const timestamp = getCurrentTimestampInSecond();
     const result: StorageTypes.IAppendResult = Object.assign(new EventEmitter(), {
       content,
       id: ipfsHash,
diff --git a/packages/ethereum-storage/src/ethereum-tx-submitter.ts b/packages/ethereum-storage/src/ethereum-tx-submitter.ts
index 1e8233b566..672d4503f8 100644
--- a/packages/ethereum-storage/src/ethereum-tx-submitter.ts
+++ b/packages/ethereum-storage/src/ethereum-tx-submitter.ts
@@ -1,10 +1,10 @@
 import { ContractTransaction, providers, utils } from 'ethers';
-import Utils from '@requestnetwork/utils';
 import { LogTypes } from '@requestnetwork/types';
 import { requestHashSubmitterArtifact } from '@requestnetwork/smart-contracts';
 import { RequestOpenHashSubmitter } from '@requestnetwork/smart-contracts/types';
 import { SubmitterProps } from './ethereum-storage-ethers';
 import { GasFeeDefiner } from './gas-fee-definer';
+import { SimpleLogger } from '@requestnetwork/utils';
 
 /**
  * Handles the submission of a hash on the request HashSubmitter contract
@@ -17,7 +17,7 @@ export class EthereumTransactionSubmitter {
   private readonly gasFeeDefiner: GasFeeDefiner;
 
   constructor({ network, signer, logger, gasPriceMin }: SubmitterProps) {
-    this.logger = logger || new Utils.SimpleLogger();
+    this.logger = logger || new SimpleLogger();
     const provider = signer.provider as providers.JsonRpcProvider;
     this.provider = provider;
     this.hashSubmitter = requestHashSubmitterArtifact.connect(
diff --git a/packages/ethereum-storage/src/gas-fee-definer.ts b/packages/ethereum-storage/src/gas-fee-definer.ts
index fff8224c24..09afa7c8d7 100644
--- a/packages/ethereum-storage/src/gas-fee-definer.ts
+++ b/packages/ethereum-storage/src/gas-fee-definer.ts
@@ -1,6 +1,6 @@
 import { BigNumber, providers, constants } from 'ethers';
-import Utils from '@requestnetwork/utils';
 import { GasDefinerProps } from './ethereum-storage-ethers';
+import { estimateGasFees } from '@requestnetwork/utils';
 
 export class GasFeeDefiner {
   private readonly provider: providers.JsonRpcProvider;
@@ -18,6 +18,6 @@ export class GasFeeDefiner {
     maxFeePerGas?: BigNumber;
     maxPriorityFeePerGas?: BigNumber;
   }> {
-    return Utils.estimateGasFees({ provider: this.provider, gasPriceMin: this.gasPriceMin });
+    return estimateGasFees({ provider: this.provider, gasPriceMin: this.gasPriceMin });
   }
 }
diff --git a/packages/ethereum-storage/src/gas-price-definer.ts b/packages/ethereum-storage/src/gas-price-definer.ts
index 6cc60927a8..7bd232392b 100644
--- a/packages/ethereum-storage/src/gas-price-definer.ts
+++ b/packages/ethereum-storage/src/gas-price-definer.ts
@@ -5,11 +5,11 @@ import EtherscanProvider from './gas-price-providers/etherscan-provider';
 import EthGasStationProvider from './gas-price-providers/ethgasstation-provider';
 
 import { LogTypes, StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import { BigNumber } from 'ethers';
 import XDaiFixedProvider from './gas-price-providers/xdai-fixed-provider';
 import { GasDefinerProps } from './ethereum-storage-ethers';
+import { SimpleLogger } from '@requestnetwork/utils';
 
 /**
  * Determines the gas price to use depending on the used network
@@ -48,7 +48,7 @@ export class GasPriceDefiner {
     logger,
     gasPriceMin,
   }: GasDefinerProps & { logger?: LogTypes.ILogger } = {}) {
-    this.logger = logger || new Utils.SimpleLogger();
+    this.logger = logger || new SimpleLogger();
     this.gasPriceMin = gasPriceMin;
   }
 
diff --git a/packages/ethereum-storage/src/gas-price-providers/etherchain-provider.ts b/packages/ethereum-storage/src/gas-price-providers/etherchain-provider.ts
index 8c711653fa..3f7b9e5a79 100644
--- a/packages/ethereum-storage/src/gas-price-providers/etherchain-provider.ts
+++ b/packages/ethereum-storage/src/gas-price-providers/etherchain-provider.ts
@@ -1,11 +1,11 @@
 import EthereumUtils from '../ethereum-utils';
 
 import { StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import Axios from 'axios';
 
 import { BigNumber } from 'ethers';
+import { retry } from '@requestnetwork/utils';
 
 // Maximum number of api requests to retry when an error is encountered (ECONNRESET, EPIPE, ENOTFOUND)
 const ETHERCHAIN_REQUEST_MAX_RETRY = 3;
@@ -32,7 +32,7 @@ export default class EtherchainProvider implements StorageTypes.IGasPriceProvide
    * @returns Requested gas price
    */
   public async getGasPrice(type: StorageTypes.GasPriceType): Promise<BigNumber | null> {
-    const res = await Utils.retry(async () => Axios.get(this.providerUrl), {
+    const res = await retry(async () => Axios.get(this.providerUrl), {
       maxRetries: ETHERCHAIN_REQUEST_MAX_RETRY,
       retryDelay: ETHERCHAIN_REQUEST_RETRY_DELAY,
     })();
diff --git a/packages/ethereum-storage/src/gas-price-providers/etherscan-provider.ts b/packages/ethereum-storage/src/gas-price-providers/etherscan-provider.ts
index e2eb0fdb5c..f84928d4ac 100644
--- a/packages/ethereum-storage/src/gas-price-providers/etherscan-provider.ts
+++ b/packages/ethereum-storage/src/gas-price-providers/etherscan-provider.ts
@@ -1,11 +1,11 @@
 import EthereumUtils from '../ethereum-utils';
 
 import { StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import Axios from 'axios';
 
 import { BigNumber } from 'ethers';
+import { retry } from '@requestnetwork/utils';
 
 // Maximum number of api requests to retry when an error is encountered (ECONNRESET, EPIPE, ENOTFOUND)
 const ETHERSCAN_REQUEST_MAX_RETRY = 3;
@@ -32,7 +32,7 @@ export default class EtherscanProvider implements StorageTypes.IGasPriceProvider
    * @returns Requested gas price
    */
   public async getGasPrice(type: StorageTypes.GasPriceType): Promise<BigNumber | null> {
-    const res = await Utils.retry(async () => Axios.get(this.providerUrl), {
+    const res = await retry(async () => Axios.get(this.providerUrl), {
       maxRetries: ETHERSCAN_REQUEST_MAX_RETRY,
       retryDelay: ETHERSCAN_REQUEST_RETRY_DELAY,
     })();
diff --git a/packages/ethereum-storage/src/gas-price-providers/ethgasstation-provider.ts b/packages/ethereum-storage/src/gas-price-providers/ethgasstation-provider.ts
index f405cab967..411a75e0b2 100644
--- a/packages/ethereum-storage/src/gas-price-providers/ethgasstation-provider.ts
+++ b/packages/ethereum-storage/src/gas-price-providers/ethgasstation-provider.ts
@@ -1,10 +1,10 @@
 import EthereumUtils from '../ethereum-utils';
 
 import { StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import Axios from 'axios';
 
 import { BigNumber } from 'ethers';
+import { retry } from '@requestnetwork/utils';
 
 // Maximum number of api requests to retry when an error is encountered (ECONNRESET, EPIPE, ENOTFOUND)
 const ETHGASSTATION_REQUEST_MAX_RETRY = 3;
@@ -31,7 +31,7 @@ export default class EthGasStationProvider implements StorageTypes.IGasPriceProv
    * @returns Requested gas price
    */
   public async getGasPrice(type: StorageTypes.GasPriceType): Promise<BigNumber | null> {
-    const res = await Utils.retry(async () => Axios.get(this.providerUrl), {
+    const res = await retry(async () => Axios.get(this.providerUrl), {
       maxRetries: ETHGASSTATION_REQUEST_MAX_RETRY,
       retryDelay: ETHGASSTATION_RETRY_DELAY,
     })();
diff --git a/packages/ethereum-storage/src/ipfs-manager.ts b/packages/ethereum-storage/src/ipfs-manager.ts
index 65fc0938ab..a4d2cd8484 100644
--- a/packages/ethereum-storage/src/ipfs-manager.ts
+++ b/packages/ethereum-storage/src/ipfs-manager.ts
@@ -1,11 +1,11 @@
 import { UnixFS } from 'ipfs-unixfs';
 import * as qs from 'qs';
 import axios, { AxiosError, AxiosInstance, AxiosRequestConfig } from 'axios';
-import Utils from '@requestnetwork/utils';
 import { LogTypes, StorageTypes } from '@requestnetwork/types';
 
 import { getDefaultIpfs, getIpfsErrorHandlingConfig } from './config';
 import * as FormData from 'form-data';
+import { retry, SimpleLogger } from '@requestnetwork/utils';
 
 /** A mapping between IPFS Paths and the response type */
 type IpfsPaths = {
@@ -43,7 +43,7 @@ export default class IpfsManager {
   }) {
     this.ipfsGatewayConnection = options?.ipfsGatewayConnection || getDefaultIpfs();
     this.ipfsErrorHandling = options?.ipfsErrorHandling || getIpfsErrorHandlingConfig();
-    this.logger = options?.logger || new Utils.SimpleLogger();
+    this.logger = options?.logger || new SimpleLogger();
 
     this.axiosInstance = axios.create({
       baseURL: `${this.ipfsGatewayConnection.protocol}://${this.ipfsGatewayConnection.host}:${this.ipfsGatewayConnection.port}/${this.BASE_PATH}/`,
@@ -55,7 +55,7 @@ export default class IpfsManager {
   }
 
   private async ipfs<T extends keyof IpfsPaths>(path: T, config?: AxiosRequestConfig) {
-    const _post = Utils.retry(this.axiosInstance.post, {
+    const _post = retry(this.axiosInstance.post, {
       context: this.axiosInstance,
       maxRetries: this.ipfsErrorHandling.maxRetries,
       retryDelay: this.ipfsErrorHandling.delayBetweenRetries,
diff --git a/packages/ethereum-storage/src/ipfs-storage.ts b/packages/ethereum-storage/src/ipfs-storage.ts
index 603dd4ff63..6df4a11b1a 100644
--- a/packages/ethereum-storage/src/ipfs-storage.ts
+++ b/packages/ethereum-storage/src/ipfs-storage.ts
@@ -1,8 +1,8 @@
 import { LogTypes, StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import { getIpfsExpectedBootstrapNodes, getPinRequestConfig } from './config';
 import IpfsManager from './ipfs-manager';
+import { SimpleLogger } from '@requestnetwork/utils';
 
 export type IpfsStorageProps = {
   logger?: LogTypes.ILogger;
@@ -15,7 +15,7 @@ export class IpfsStorage implements StorageTypes.IIpfsStorage {
 
   constructor({ ipfsGatewayConnection, logger }: IpfsStorageProps) {
     this.ipfsManager = new IpfsManager({ ipfsGatewayConnection, logger });
-    this.logger = logger || new Utils.SimpleLogger();
+    this.logger = logger || new SimpleLogger();
   }
 
   public async initialize(): Promise<void> {
diff --git a/packages/ethereum-storage/src/smart-contract-manager.ts b/packages/ethereum-storage/src/smart-contract-manager.ts
index fa15336e8d..2c184c37ae 100644
--- a/packages/ethereum-storage/src/smart-contract-manager.ts
+++ b/packages/ethereum-storage/src/smart-contract-manager.ts
@@ -1,6 +1,5 @@
 import * as SmartContracts from '@requestnetwork/smart-contracts';
 import { LogTypes, StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import * as Bluebird from 'bluebird';
 import * as config from './config';
 import EthereumBlocks from './ethereum-blocks';
@@ -13,6 +12,12 @@ const web3Eth = require('web3-eth');
 const web3Utils = require('web3-utils');
 
 import { BigNumber } from 'ethers';
+import {
+  flatten2DimensionsArray,
+  retry,
+  SimpleLogger,
+  timeoutPromise,
+} from '@requestnetwork/utils';
 
 // Maximum number of attempt to create ethereum metadata when transaction to add hash and size to Ethereum is confirmed
 // 23 is the number of call of the transaction's confirmation event function
@@ -105,7 +110,7 @@ export default class SmartContractManager {
     },
   ) {
     this.maxConcurrency = maxConcurrency;
-    this.logger = logger || new Utils.SimpleLogger();
+    this.logger = logger || new SimpleLogger();
 
     this.maxRetries = maxRetries;
     this.retryDelay = retryDelay;
@@ -235,7 +240,7 @@ export default class SmartContractManager {
   public async getMainAccount(): Promise<string> {
     // Get the accounts on the provider
     // Throws an error if timeout is reached
-    const accounts = await Utils.timeoutPromise<string[]>(
+    const accounts = await timeoutPromise<string[]>(
       this.eth.getAccounts(),
       this.timeout,
       'Web3 getAccounts connection timeout',
@@ -265,7 +270,7 @@ export default class SmartContractManager {
 
     // Get the fee from the size of the content
     // Throws an error if timeout is reached
-    const fee = await Utils.timeoutPromise<string>(
+    const fee = await timeoutPromise<string>(
       this.requestHashSubmitter.methods.getFeesAmount(feesParameters.contentSize).call(),
       this.timeout,
       'Web3 getFeesAmount connection timeout',
@@ -532,9 +537,9 @@ export default class SmartContractManager {
     // If getPastEvents doesn't throw, we can return the returned events from the function
     let events: any;
     try {
-      events = await Utils.retry(
+      events = await retry(
         (args) =>
-          Utils.timeoutPromise(
+          timeoutPromise(
             this.requestHashStorage.getPastEvents(args),
             this.timeout,
             'Web3 getPastEvents connection timeout',
@@ -564,7 +569,7 @@ export default class SmartContractManager {
         );
 
         return Promise.all([eventsFirstHalfPromise, eventsSecondHalfPromise])
-          .then((halves) => Utils.flatten2DimensionsArray(halves))
+          .then((halves) => flatten2DimensionsArray(halves))
           .catch((err) => {
             throw err;
           });
diff --git a/packages/ethereum-storage/test/ethereum-entries-to-ipfs-content.test.ts b/packages/ethereum-storage/test/ethereum-entries-to-ipfs-content.test.ts
index d087235551..2ba90d6a04 100644
--- a/packages/ethereum-storage/test/ethereum-entries-to-ipfs-content.test.ts
+++ b/packages/ethereum-storage/test/ethereum-entries-to-ipfs-content.test.ts
@@ -1,5 +1,5 @@
 import { StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { SimpleLogger } from '@requestnetwork/utils';
 
 import ethereumEntriesToIpfsContent from '../src/ethereum-entries-to-ipfs-content';
 import IgnoredDataIndex from '../src/ignored-dataIds';
@@ -60,7 +60,7 @@ describe('ethereum-entries-to-ipfs-content', () => {
       ethereumEntriesToProcess,
       ipfsManager,
       ignoredDataIndex,
-      new Utils.SimpleLogger(),
+      new SimpleLogger(),
       5,
     );
 
@@ -175,7 +175,7 @@ describe('ethereum-entries-to-ipfs-content', () => {
       ethereumEntriesToProcess,
       ipfsManager,
       ignoredDataIndex,
-      new Utils.SimpleLogger(),
+      new SimpleLogger(),
       5,
     );
 
@@ -246,7 +246,7 @@ describe('ethereum-entries-to-ipfs-content', () => {
       ethereumEntriesToProcess,
       ipfsManager,
       ignoredDataIndex,
-      new Utils.SimpleLogger(),
+      new SimpleLogger(),
       5,
     );
 
@@ -287,7 +287,7 @@ describe('ethereum-entries-to-ipfs-content', () => {
       ethereumEntriesToProcess,
       ipfsManager,
       ignoredDataIndex,
-      new Utils.SimpleLogger(),
+      new SimpleLogger(),
       5,
     );
     expect(result.length).toBe(1);
@@ -316,7 +316,7 @@ describe('ethereum-entries-to-ipfs-content', () => {
       ethereumEntriesToProcess,
       ipfsManager,
       ignoredDataIndex,
-      new Utils.SimpleLogger(),
+      new SimpleLogger(),
       5,
     );
     expect(result.length).toBe(0);
@@ -349,7 +349,7 @@ describe('ethereum-entries-to-ipfs-content', () => {
       ethereumEntriesToProcess,
       ipfsManager,
       ignoredDataIndex,
-      new Utils.SimpleLogger(),
+      new SimpleLogger(),
       5,
     );
     expect(result.length).toBe(0);
diff --git a/packages/ethereum-storage/test/ethereum-storage.test.ts b/packages/ethereum-storage/test/ethereum-storage.test.ts
index ab02c30bab..bcc4ffa622 100644
--- a/packages/ethereum-storage/test/ethereum-storage.test.ts
+++ b/packages/ethereum-storage/test/ethereum-storage.test.ts
@@ -1,6 +1,6 @@
 import * as SmartContracts from '@requestnetwork/smart-contracts';
 import { StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { getCurrentTimestampInSecond } from '@requestnetwork/utils';
 import { EventEmitter } from 'events';
 
 import { EthereumStorage } from '../src/ethereum-storage';
@@ -222,7 +222,7 @@ describe('EthereumStorage', () => {
     it('allows to append a file', async () => {
       jest.useFakeTimers('modern');
       jest.setSystemTime(0);
-      const timestamp = Utils.getCurrentTimestampInSecond();
+      const timestamp = getCurrentTimestampInSecond();
       const result = await ethereumStorage.append(content1);
 
       const resultExpected: StorageTypes.IAppendResult = Object.assign(new EventEmitter(), {
diff --git a/packages/integration-test/test/layers.test.ts b/packages/integration-test/test/layers.test.ts
index 2d9b09d3d4..1e72d03a60 100644
--- a/packages/integration-test/test/layers.test.ts
+++ b/packages/integration-test/test/layers.test.ts
@@ -1,3 +1,5 @@
+import { getCurrentTimestampInSecond } from '@requestnetwork/utils';
+
 const web3Eth = require('web3-eth');
 
 import { AdvancedLogic } from '@requestnetwork/advanced-logic';
@@ -17,7 +19,6 @@ import {
   SignatureTypes,
   StorageTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 let advancedLogic: AdvancedLogicTypes.IAdvancedLogic;
 let requestLogic: RequestLogicTypes.IRequestLogic;
@@ -367,7 +368,7 @@ describe('Request system', () => {
         type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
         value: '0x740fc87Bd3f41d07d23A01DEc90623eBC5fed9D6',
       },
-      timestamp: Utils.getCurrentTimestampInSecond(),
+      timestamp: getCurrentTimestampInSecond(),
     };
     // create a unique topic just to not have collisions in tests
     const topics1 = [request1CreationHash];
@@ -390,7 +391,7 @@ describe('Request system', () => {
         type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
         value: '0x740fc87Bd3f41d07d23A01DEc90623eBC5fed9D6',
       },
-      timestamp: Utils.getCurrentTimestampInSecond(),
+      timestamp: getCurrentTimestampInSecond(),
     };
     const resultCreation2 = await requestLogic.createRequest(
       request2CreationHash,
diff --git a/packages/integration-test/test/node-client.test.ts b/packages/integration-test/test/node-client.test.ts
index f5e7a546a6..41a1ae5283 100644
--- a/packages/integration-test/test/node-client.test.ts
+++ b/packages/integration-test/test/node-client.test.ts
@@ -8,7 +8,6 @@ import {
   RequestLogicTypes,
   ExtensionTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import {
   payRequest,
   approveErc20ForProxyConversionIfNeeded,
@@ -24,6 +23,7 @@ import {
   requestNetwork,
   signatureProvider,
 } from './scheduled/fixtures';
+import { getCurrentTimestampInSecond, normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 const mnemonic = 'candy maple cake sugar pudding cream honey rich smooth crumble sweet treat';
 const provider = new providers.JsonRpcProvider('http://localhost:8545');
@@ -175,11 +175,11 @@ describe('Request client using a request node', () => {
       expectedAmount: '100000000',
       payee: payeeIdentity,
       payer: payerIdentity,
-      timestamp: Utils.getCurrentTimestampInSecond(),
+      timestamp: getCurrentTimestampInSecond(),
     };
 
     const topicsRequest1and2: string[] = [
-      MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(requestCreationHash1)),
+      MultiFormat.serialize(normalizeKeccak256Hash(requestCreationHash1)),
     ];
 
     const request1: Request = await requestNetwork.createRequest({
@@ -188,7 +188,7 @@ describe('Request client using a request node', () => {
       topics: topicsRequest1and2,
     });
     await request1.waitForConfirmation();
-    const timestampBeforeReduce = Utils.getCurrentTimestampInSecond();
+    const timestampBeforeReduce = getCurrentTimestampInSecond();
 
     // make sure that request 2 timestamp is greater than request 1 timestamp
     const waitNextSecond = (timestampBeforeReduce + 1) * 1000 - Date.now();
@@ -200,7 +200,7 @@ describe('Request client using a request node', () => {
       expectedAmount: '1000',
       payee: payeeIdentity,
       payer: payerIdentity,
-      timestamp: Utils.getCurrentTimestampInSecond(),
+      timestamp: getCurrentTimestampInSecond(),
     };
 
     const request2: Request = await requestNetwork.createRequest({
@@ -251,11 +251,11 @@ describe('Request client using a request node', () => {
       value: '0xf17f52151ebef6c7334fad080c5704d77216b732',
     };
 
-    const timestampCreation = Utils.getCurrentTimestampInSecond();
+    const timestampCreation = getCurrentTimestampInSecond();
 
     // create request 1
     const topicsRequest1and2: string[] = [
-      MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(timestampCreation)),
+      MultiFormat.serialize(normalizeKeccak256Hash(timestampCreation)),
     ];
     const request1: Request = await requestNetwork.createRequest({
       requestInfo: {
@@ -263,7 +263,7 @@ describe('Request client using a request node', () => {
         expectedAmount: '100000000',
         payee: payeeIdentity,
         payer: payerSmartContract,
-        timestamp: Utils.getCurrentTimestampInSecond(),
+        timestamp: getCurrentTimestampInSecond(),
       },
       signer: payeeIdentity,
       topics: topicsRequest1and2,
@@ -276,7 +276,7 @@ describe('Request client using a request node', () => {
         expectedAmount: '1000',
         payee: payeeIdentity,
         payer: payerIdentity,
-        timestamp: Utils.getCurrentTimestampInSecond(),
+        timestamp: getCurrentTimestampInSecond(),
       },
       signer: payeeIdentity,
       topics: topicsRequest1and2,
@@ -473,7 +473,7 @@ describe('Request client using a request node', () => {
 
   it('cannot decrypt a request with the wrong decryption provider', async () => {
     const timestamp = Date.now();
-    const myRandomTopic = `topic ${Utils.getCurrentTimestampInSecond()}`;
+    const myRandomTopic = `topic ${getCurrentTimestampInSecond()}`;
     const requestNetwork = new RequestNetwork({
       httpConfig,
       decryptionProvider,
diff --git a/packages/payment-detection/src/any-to-any-detector.ts b/packages/payment-detection/src/any-to-any-detector.ts
index e760cd1e64..1e135712fc 100644
--- a/packages/payment-detection/src/any-to-any-detector.ts
+++ b/packages/payment-detection/src/any-to-any-detector.ts
@@ -1,8 +1,7 @@
 import { ExtensionTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { FeeReferenceBasedDetector } from './fee-reference-based-detector';
-
 import { ICurrencyManager } from '@requestnetwork/currency';
+import { generate8randomBytes } from '@requestnetwork/utils';
 
 /**
  * Abstract class to extend to get the payment balance of conversion requests
@@ -34,7 +33,7 @@ export abstract class AnyToAnyDetector<
   ): Promise<ExtensionTypes.IAction> {
     // If no salt is given, generate one
     paymentNetworkCreationParameters.salt =
-      paymentNetworkCreationParameters.salt || (await Utils.crypto.generate8randomBytes());
+      paymentNetworkCreationParameters.salt || (await generate8randomBytes());
 
     return this.extension.createCreationAction(paymentNetworkCreationParameters);
   }
diff --git a/packages/payment-detection/src/any/any-to-erc20-proxy.ts b/packages/payment-detection/src/any/any-to-erc20-proxy.ts
index 2ff4628239..9e336cc8c8 100644
--- a/packages/payment-detection/src/any/any-to-erc20-proxy.ts
+++ b/packages/payment-detection/src/any/any-to-erc20-proxy.ts
@@ -1,11 +1,11 @@
 import { erc20ConversionProxy } from '@requestnetwork/smart-contracts';
 import { ExtensionTypes, PaymentTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { ERC20FeeProxyPaymentDetectorBase } from '../erc20/fee-proxy-contract';
 import { AnyToErc20InfoRetriever } from './retrievers/any-to-erc20-proxy';
 import { TheGraphInfoRetriever } from '../thegraph';
 import { makeGetDeploymentInformation } from '../utils';
 import { PaymentNetworkOptions, ReferenceBasedDetectorOptions } from '../types';
+import { generate8randomBytes } from '@requestnetwork/utils';
 
 const PROXY_CONTRACT_ADDRESS_MAP = {
   ['0.1.0']: '0.1.0',
@@ -48,8 +48,7 @@ export class AnyToERC20PaymentDetector extends ERC20FeeProxyPaymentDetectorBase<
     paymentNetworkCreationParameters: PaymentTypes.IAnyToErc20CreationParameters,
   ): Promise<ExtensionTypes.IAction> {
     // If no salt is given, generate one
-    const salt =
-      paymentNetworkCreationParameters.salt || (await Utils.crypto.generate8randomBytes());
+    const salt = paymentNetworkCreationParameters.salt || (await generate8randomBytes());
 
     return this.extension.createCreationAction({
       feeAddress: paymentNetworkCreationParameters.feeAddress,
diff --git a/packages/payment-detection/src/any/retrievers/any-to-any-proxy.ts b/packages/payment-detection/src/any/retrievers/any-to-any-proxy.ts
index b8e3f42ede..3963d2949a 100644
--- a/packages/payment-detection/src/any/retrievers/any-to-any-proxy.ts
+++ b/packages/payment-detection/src/any/retrievers/any-to-any-proxy.ts
@@ -1,9 +1,9 @@
 import { CurrencyDefinition } from '@requestnetwork/currency';
 import { PaymentTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { BigNumber, ethers } from 'ethers';
 import { parseLogArgs, unpadAmountFromChainlink } from '../../utils';
 import type { JsonFragment } from '@ethersproject/abi';
+import { getDefaultProvider } from '@requestnetwork/utils';
 
 /** TransferWithConversionAndReference event */
 type TransferWithConversionAndReferenceArgs = {
@@ -53,7 +53,7 @@ export abstract class ConversionInfoRetriever {
     protected maxRateTimespan: number = 0,
   ) {
     // Creates a local or default provider
-    this.provider = Utils.getDefaultProvider(this.network);
+    this.provider = getDefaultProvider(this.network);
 
     // Setup the conversion proxy contract interface
     this.contractConversionProxy = new ethers.Contract(
diff --git a/packages/payment-detection/src/btc/default-providers/blockchain-info.ts b/packages/payment-detection/src/btc/default-providers/blockchain-info.ts
index 19a37a7c2b..9419633018 100644
--- a/packages/payment-detection/src/btc/default-providers/blockchain-info.ts
+++ b/packages/payment-detection/src/btc/default-providers/blockchain-info.ts
@@ -1,8 +1,8 @@
 import { PaymentTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import Axios from 'axios';
 
 import { BigNumber } from 'ethers';
+import { retry } from '@requestnetwork/utils';
 
 // Maximum number of api requests to retry when an error is encountered (ECONNRESET, EPIPE, ENOTFOUND)
 const BLOCKCHAININFO_REQUEST_MAX_RETRY = 3;
@@ -34,7 +34,7 @@ export class BlockchainInfoProvider implements PaymentTypes.IBitcoinDetectionPro
 
     const queryUrl = `${blockchainInfoUrl}/rawaddr/${address}?cors=true`;
     try {
-      const res = await Utils.retry(async () => Axios.get(queryUrl), {
+      const res = await retry(async () => Axios.get(queryUrl), {
         maxRetries: BLOCKCHAININFO_REQUEST_MAX_RETRY,
         retryDelay: BLOCKCHAININFO_REQUEST_RETRY_DELAY,
       })();
@@ -50,7 +50,7 @@ export class BlockchainInfoProvider implements PaymentTypes.IBitcoinDetectionPro
 
       // get all the transactions from the whole pagination
       for (let i = 1; i <= numberOfExtraPages; i++) {
-        const resExtraPage = await Utils.retry(
+        const resExtraPage = await retry(
           async () =>
             fetch(`${blockchainInfoUrl}/rawaddr/${address}?cors=true&offset=${i * TXS_PER_PAGE}`),
           {
diff --git a/packages/payment-detection/src/btc/default-providers/blockcypher-com.ts b/packages/payment-detection/src/btc/default-providers/blockcypher-com.ts
index a161e61504..e9914b2d0b 100644
--- a/packages/payment-detection/src/btc/default-providers/blockcypher-com.ts
+++ b/packages/payment-detection/src/btc/default-providers/blockcypher-com.ts
@@ -1,7 +1,7 @@
 import { PaymentTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import Axios from 'axios';
 import { BigNumber } from 'ethers';
+import { retry } from '@requestnetwork/utils';
 
 // Maximum number of api requests to retry when an error is encountered (ECONNRESET, EPIPE, ENOTFOUND)
 const BLOCKCYPHER_REQUEST_MAX_RETRY = 3;
@@ -29,7 +29,7 @@ export class BlockcypherComProvider implements PaymentTypes.IBitcoinDetectionPro
     const baseUrl = this.getBaseUrl(bitcoinNetworkId);
     const queryUrl = `${baseUrl}/addrs/${address}`;
     try {
-      const res = await Utils.retry(async () => Axios.get(queryUrl), {
+      const res = await retry(async () => Axios.get(queryUrl), {
         maxRetries: BLOCKCYPHER_REQUEST_MAX_RETRY,
         retryDelay: BLOCKCYPHER_REQUEST_RETRY_DELAY,
       })();
diff --git a/packages/payment-detection/src/btc/default-providers/blockstream-info.ts b/packages/payment-detection/src/btc/default-providers/blockstream-info.ts
index 4d7d4290a8..83ec48fa74 100644
--- a/packages/payment-detection/src/btc/default-providers/blockstream-info.ts
+++ b/packages/payment-detection/src/btc/default-providers/blockstream-info.ts
@@ -1,7 +1,7 @@
 import { PaymentTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import Axios from 'axios';
 import { BigNumber } from 'ethers';
+import { retry } from '@requestnetwork/utils';
 
 // Maximum number of api requests to retry when an error is encountered (ECONNRESET, EPIPE, ENOTFOUND)
 const BLOCKSTREAMINFO_REQUEST_MAX_RETRY = 3;
@@ -32,7 +32,7 @@ export class BlockStreamInfoProvider implements PaymentTypes.IBitcoinDetectionPr
     const baseUrl = this.getBaseUrl(bitcoinNetworkId);
     const queryUrl = `${baseUrl}/address/${address}/txs`;
     try {
-      const res = await Utils.retry(async () => Axios.get(queryUrl), {
+      const res = await retry(async () => Axios.get(queryUrl), {
         maxRetries: BLOCKSTREAMINFO_REQUEST_MAX_RETRY,
         retryDelay: BLOCKSTREAMINFO_REQUEST_RETRY_DELAY,
       })();
@@ -48,7 +48,7 @@ export class BlockStreamInfoProvider implements PaymentTypes.IBitcoinDetectionPr
       while (checkForMoreTransactions) {
         const lastTxHash = txs[txs.length - 1].txid;
 
-        const resExtraPage = await Utils.retry(
+        const resExtraPage = await retry(
           async () => fetch(`${baseUrl}/address/${address}/txs/chain/${lastTxHash}`),
           {
             maxRetries: BLOCKSTREAMINFO_REQUEST_MAX_RETRY,
diff --git a/packages/payment-detection/src/btc/default-providers/chain-so.ts b/packages/payment-detection/src/btc/default-providers/chain-so.ts
index 6ac867f730..8258ce457f 100644
--- a/packages/payment-detection/src/btc/default-providers/chain-so.ts
+++ b/packages/payment-detection/src/btc/default-providers/chain-so.ts
@@ -1,8 +1,8 @@
 import { PaymentTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import Axios from 'axios';
 import * as converterBTC from 'satoshi-bitcoin';
 import { BigNumber } from 'ethers';
+import { retry } from '@requestnetwork/utils';
 
 // Maximum number of api requests to retry when an error is encountered (ECONNRESET, EPIPE, ENOTFOUND)
 const CHAINSO_REQUEST_MAX_RETRY = 3;
@@ -31,7 +31,7 @@ export class ChainSoProvider implements PaymentTypes.IBitcoinDetectionProvider {
     const queryUrl = `${baseUrl}${address}`;
 
     try {
-      const res = await Utils.retry(async () => Axios.get(queryUrl), {
+      const res = await retry(async () => Axios.get(queryUrl), {
         maxRetries: CHAINSO_REQUEST_MAX_RETRY,
         retryDelay: CHAINSO_REQUEST_RETRY_DELAY,
       })();
diff --git a/packages/payment-detection/src/declarative.ts b/packages/payment-detection/src/declarative.ts
index 9a799e64ba..c138c985d0 100644
--- a/packages/payment-detection/src/declarative.ts
+++ b/packages/payment-detection/src/declarative.ts
@@ -4,8 +4,8 @@ import {
   PaymentTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { PaymentDetectorBase } from './payment-detector-base';
+import { notNull } from '@requestnetwork/utils';
 
 /**
  * Handles payment detection for a declarative request, or derived.
@@ -184,7 +184,7 @@ export abstract class DeclarativePaymentDetectorBase<
         }
         return null;
       })
-      .filter(Utils.notNull);
+      .filter(notNull);
   }
 }
 
diff --git a/packages/payment-detection/src/erc20/address-based-info-retriever.ts b/packages/payment-detection/src/erc20/address-based-info-retriever.ts
index 85cf51921a..d8dec80d4a 100644
--- a/packages/payment-detection/src/erc20/address-based-info-retriever.ts
+++ b/packages/payment-detection/src/erc20/address-based-info-retriever.ts
@@ -1,7 +1,7 @@
 import { PaymentTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { IPaymentRetriever } from '../types';
 import { ethers } from 'ethers';
+import { getDefaultProvider } from '@requestnetwork/utils';
 
 // The ERC20 smart contract ABI fragment containing decimals property and Transfer event
 const erc20BalanceOfAbiFragment = [
@@ -69,7 +69,7 @@ export default class ERC20InfoRetriever
    */
   public async getTransferEvents(): Promise<PaymentTypes.ERC20PaymentNetworkEvent[]> {
     // Creates a local or default provider
-    const provider = Utils.getDefaultProvider(this.network);
+    const provider = getDefaultProvider(this.network);
 
     // Set up the ERC20 contract interface
     const contract = new ethers.Contract(
diff --git a/packages/payment-detection/src/erc20/currency.ts b/packages/payment-detection/src/erc20/currency.ts
index 13508da647..68b8888a14 100644
--- a/packages/payment-detection/src/erc20/currency.ts
+++ b/packages/payment-detection/src/erc20/currency.ts
@@ -1,4 +1,3 @@
-import { utils } from 'ethers';
 import {
   CurrencyDefinition,
   CurrencyManager,
@@ -7,20 +6,18 @@ import {
 } from '@requestnetwork/currency';
 import { RequestLogicTypes } from '@requestnetwork/types';
 import { ERC20__factory } from '@requestnetwork/smart-contracts/types';
-import Utils from '@requestnetwork/utils';
+import { isAddress } from 'ethers/lib/utils';
+import { getDefaultProvider } from '@requestnetwork/utils';
 
 export const loadCurrencyFromContract = async (
   currency: StorageCurrency,
 ): Promise<CurrencyDefinition | null> => {
-  if (!currency.network || !utils.isAddress(currency.value)) {
+  if (!currency.network || !isAddress(currency.value)) {
     return null;
   }
 
   try {
-    const contract = ERC20__factory.connect(
-      currency.value,
-      Utils.getDefaultProvider(currency.network),
-    );
+    const contract = ERC20__factory.connect(currency.value, getDefaultProvider(currency.network));
     const decimals = await contract.decimals();
 
     if (!decimals) {
diff --git a/packages/payment-detection/src/erc20/escrow-info-retriever.ts b/packages/payment-detection/src/erc20/escrow-info-retriever.ts
index 4fff9e8ad7..2f128d97e8 100644
--- a/packages/payment-detection/src/erc20/escrow-info-retriever.ts
+++ b/packages/payment-detection/src/erc20/escrow-info-retriever.ts
@@ -1,9 +1,9 @@
 import { PaymentTypes } from '@requestnetwork/types';
 import { erc20EscrowToPayArtifact } from '@requestnetwork/smart-contracts';
-import Utils from '@requestnetwork/utils';
 import { BigNumber, ethers } from 'ethers';
 import { IEventRetriever } from '../types';
 import { makeGetDeploymentInformation, parseLogArgs } from '../utils';
+import { getDefaultProvider } from '@requestnetwork/utils';
 
 const ESCROW_CONTRACT_ADDRESS_MAP = {
   ['0.1.0']: '0.1.0',
@@ -55,7 +55,7 @@ export class EscrowERC20InfoRetriever
     private eventName?: PaymentTypes.ESCROW_EVENTS_NAMES,
   ) {
     // Creates a local or default provider.
-    this.provider = Utils.getDefaultProvider(this.network);
+    this.provider = getDefaultProvider(this.network);
 
     // Set up the ERC20 escrow contract interface.
     this.contractEscrow = new ethers.Contract(
diff --git a/packages/payment-detection/src/erc20/proxy-info-retriever.ts b/packages/payment-detection/src/erc20/proxy-info-retriever.ts
index 41a0cae66e..2ce08aa646 100644
--- a/packages/payment-detection/src/erc20/proxy-info-retriever.ts
+++ b/packages/payment-detection/src/erc20/proxy-info-retriever.ts
@@ -1,8 +1,8 @@
 import { PaymentTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { IPaymentRetriever } from '../types';
 import { BigNumber, ethers } from 'ethers';
 import { parseLogArgs } from '../utils';
+import { getDefaultProvider } from '@requestnetwork/utils';
 
 // The ERC20 proxy smart contract ABI fragment containing TransferWithReference event
 const erc20proxyContractAbiFragment = [
@@ -52,7 +52,7 @@ export default class ProxyERC20InfoRetriever
     private network: string,
   ) {
     // Creates a local or default provider
-    this.provider = Utils.getDefaultProvider(this.network);
+    this.provider = getDefaultProvider(this.network);
 
     // Set up the ERC20 proxy contract interface
     this.contractProxy = new ethers.Contract(
diff --git a/packages/payment-detection/src/erc777/superfluid-retriever.ts b/packages/payment-detection/src/erc777/superfluid-retriever.ts
index 6090052165..ff21683f41 100644
--- a/packages/payment-detection/src/erc777/superfluid-retriever.ts
+++ b/packages/payment-detection/src/erc777/superfluid-retriever.ts
@@ -1,11 +1,11 @@
 import { PaymentTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { FlowUpdatedEvent, SentEvent } from '../thegraph/generated/graphql-superfluid';
 import {
   getTheGraphSuperfluidClient,
   TheGraphSuperfluidClient,
   TheGraphClientOptions,
 } from '../thegraph/superfluid';
+import { getCurrentTimestampInSecond } from '@requestnetwork/utils';
 
 /** Parameters for getting payment events from theGraph */
 type GraphPaymentQueryParams = {
@@ -96,7 +96,7 @@ export class SuperFluidInfoRetriever {
         streamEvents.push({
           oldFlowRate: streamEvents[streamEvents.length - 1].flowRate,
           flowRate: 0,
-          timestamp: Utils.getCurrentTimestampInSecond(),
+          timestamp: getCurrentTimestampInSecond(),
           blockNumber: parseInt(streamEvents[streamEvents.length - 1].blockNumber.toString()),
           transactionHash: streamEvents[streamEvents.length - 1].transactionHash,
         } as FlowUpdatedEvent);
diff --git a/packages/payment-detection/src/eth/proxy-info-retriever.ts b/packages/payment-detection/src/eth/proxy-info-retriever.ts
index cca9da8eec..789cefdd23 100644
--- a/packages/payment-detection/src/eth/proxy-info-retriever.ts
+++ b/packages/payment-detection/src/eth/proxy-info-retriever.ts
@@ -1,8 +1,8 @@
 import { PaymentTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { IPaymentRetriever } from '../types';
 import { BigNumber, ethers } from 'ethers';
 import { parseLogArgs } from '../utils';
+import { getDefaultProvider } from '@requestnetwork/utils';
 
 // The Ethereum proxy smart contract ABI fragment containing TransferWithReference event
 const ethProxyContractAbiFragment = [
@@ -49,7 +49,7 @@ export class EthProxyInfoRetriever
     private network: string,
   ) {
     // Creates a local or default provider
-    this.provider = Utils.getDefaultProvider(this.network);
+    this.provider = getDefaultProvider(this.network);
 
     // Set up the Ethereum proxy contract interface
     this.contractProxy = new ethers.Contract(
diff --git a/packages/payment-detection/src/fee-reference-based-detector.ts b/packages/payment-detection/src/fee-reference-based-detector.ts
index 7df5724262..1922c65633 100644
--- a/packages/payment-detection/src/fee-reference-based-detector.ts
+++ b/packages/payment-detection/src/fee-reference-based-detector.ts
@@ -1,8 +1,8 @@
 import { BigNumber } from 'ethers';
 import { ExtensionTypes, PaymentTypes, RequestLogicTypes } from '@requestnetwork/types';
 import { ICurrencyManager } from '@requestnetwork/currency';
-import Utils from '@requestnetwork/utils';
 import { ReferenceBasedDetector } from './reference-based-detector';
+import { generate8randomBytes } from '@requestnetwork/utils';
 
 /**
  * Abstract class to extend to get the payment balance of reference based requests
@@ -38,7 +38,7 @@ export abstract class FeeReferenceBasedDetector<
   ): Promise<ExtensionTypes.IAction> {
     // If no salt is given, generate one
     paymentNetworkCreationParameters.salt =
-      paymentNetworkCreationParameters.salt || (await Utils.crypto.generate8randomBytes());
+      paymentNetworkCreationParameters.salt || (await generate8randomBytes());
 
     return this.extension.createCreationAction({
       feeAddress: paymentNetworkCreationParameters.feeAddress,
diff --git a/packages/payment-detection/src/index.ts b/packages/payment-detection/src/index.ts
index 6dd8736513..3ba743999b 100644
--- a/packages/payment-detection/src/index.ts
+++ b/packages/payment-detection/src/index.ts
@@ -1,4 +1,8 @@
-import Utils from '@requestnetwork/utils';
+import {
+  getDefaultProvider,
+  initPaymentDetectionApiKeys,
+  setProviderFactory,
+} from '@requestnetwork/utils';
 import { PaymentNetworkFactory } from './payment-network-factory';
 import PaymentReferenceCalculator from './payment-reference-calculator';
 import * as BtcPaymentNetwork from './btc';
@@ -25,10 +29,6 @@ import { PaymentNetworkOptions } from './types';
 
 export type { TheGraphClient } from './thegraph';
 
-const setProviderFactory = Utils.setProviderFactory;
-const initPaymentDetectionApiKeys = Utils.initPaymentDetectionApiKeys;
-const getDefaultProvider = Utils.getDefaultProvider;
-
 export {
   PaymentNetworkFactory,
   PaymentNetworkOptions,
diff --git a/packages/payment-detection/src/payment-network-factory.ts b/packages/payment-detection/src/payment-network-factory.ts
index 904485b1cd..8204115fb6 100644
--- a/packages/payment-detection/src/payment-network-factory.ts
+++ b/packages/payment-detection/src/payment-network-factory.ts
@@ -4,7 +4,6 @@ import {
   PaymentTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { ICurrencyManager } from '@requestnetwork/currency';
 import {
   ContractBasedDetector,
@@ -25,6 +24,7 @@ import { AnyToERC20PaymentDetector, AnyToEthFeeProxyPaymentDetector } from './an
 import { NearConversionNativeTokenPaymentDetector, NearNativeTokenPaymentDetector } from './near';
 import { getPaymentNetworkExtension } from './utils';
 import { getTheGraphClient } from './thegraph';
+import { getDefaultProvider } from 'ethers';
 
 const PN_ID = ExtensionTypes.PAYMENT_NETWORK_ID;
 
@@ -99,7 +99,7 @@ export class PaymentNetworkFactory {
             );
       },
       explorerApiKeys: {},
-      getRpcProvider: Utils.getDefaultProvider,
+      getRpcProvider: getDefaultProvider,
     };
     return { ...defaultOptions, ...options };
   }
diff --git a/packages/payment-detection/src/payment-reference-calculator.ts b/packages/payment-detection/src/payment-reference-calculator.ts
index 842b98518e..59be645432 100644
--- a/packages/payment-detection/src/payment-reference-calculator.ts
+++ b/packages/payment-detection/src/payment-reference-calculator.ts
@@ -1,4 +1,4 @@
-import Utils from '@requestnetwork/utils';
+import { keccak256Hash } from '@requestnetwork/utils';
 
 /**
  * Compute the payment reference
@@ -7,13 +7,14 @@ import Utils from '@requestnetwork/utils';
  * @param salt The salt for the request
  * @param address Payment or refund address
  */
+
 function calculate(requestId: string, salt: string, address: string): string {
   if (!requestId || !salt || !address) {
     throw new Error('RequestId, salt and address are mandatory to calculate the payment reference');
   }
   // "The value is the last 8 bytes of a salted hash of the requestId: `last8Bytes(hash(requestId + salt + address))`"
   /* eslint-disable no-magic-numbers */
-  return Utils.crypto.keccak256Hash((requestId + salt + address).toLowerCase()).slice(-16);
+  return keccak256Hash((requestId + salt + address).toLowerCase()).slice(-16);
 }
 
 export default { calculate };
diff --git a/packages/payment-detection/src/reference-based-detector.ts b/packages/payment-detection/src/reference-based-detector.ts
index 111d953260..934e2c34e0 100644
--- a/packages/payment-detection/src/reference-based-detector.ts
+++ b/packages/payment-detection/src/reference-based-detector.ts
@@ -1,9 +1,9 @@
 import { ExtensionTypes, PaymentTypes, RequestLogicTypes, TypesUtils } from '@requestnetwork/types';
 import { ICurrencyManager } from '@requestnetwork/currency';
-import Utils from '@requestnetwork/utils';
 import PaymentReferenceCalculator from './payment-reference-calculator';
 
 import { DeclarativePaymentDetectorBase } from './declarative';
+import { generate8randomBytes } from '@requestnetwork/utils';
 
 /**
  * Abstract class to extend to get the payment balance of reference based requests
@@ -45,7 +45,7 @@ export abstract class ReferenceBasedDetector<
   ): Promise<ExtensionTypes.IAction> {
     // If no salt is given, generate one
     paymentNetworkCreationParameters.salt =
-      paymentNetworkCreationParameters.salt || (await Utils.crypto.generate8randomBytes());
+      paymentNetworkCreationParameters.salt || (await generate8randomBytes());
 
     return this.extension.createCreationAction({
       paymentAddress: paymentNetworkCreationParameters.paymentAddress,
diff --git a/packages/payment-processor/test/payment/any-to-erc20-batch-proxy.test.ts b/packages/payment-processor/test/payment/any-to-erc20-batch-proxy.test.ts
index 773bc66ddb..14e5216031 100644
--- a/packages/payment-processor/test/payment/any-to-erc20-batch-proxy.test.ts
+++ b/packages/payment-processor/test/payment/any-to-erc20-batch-proxy.test.ts
@@ -7,7 +7,7 @@ import {
   RequestLogicTypes,
 } from '@requestnetwork/types';
 import { getErc20Balance } from '../../src/payment/erc20';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import { revokeErc20Approval } from '@requestnetwork/payment-processor/src/payment/utils';
 import { EnrichedRequest, IConversionPaymentSettings } from '../../src/index';
 import { batchConversionPaymentsArtifact } from '@requestnetwork/smart-contracts';
@@ -59,7 +59,7 @@ const paymentSettings: IConversionPaymentSettings = {
   currencyManager: currencyManager,
 };
 
-const conversionPaymentSettings = Utils.deepCopy(paymentSettings);
+const conversionPaymentSettings = deepCopy(paymentSettings);
 // conversionPaymentSettings.currencyManager = undefined;
 
 const options: IRequestPaymentOptions = {
@@ -165,7 +165,7 @@ const DAIValidRequest: ClientTypes.IRequestData = {
   version: '1.0',
 };
 
-const FAUValidRequest = Utils.deepCopy(DAIValidRequest) as ClientTypes.IRequestData;
+const FAUValidRequest = deepCopy(DAIValidRequest) as ClientTypes.IRequestData;
 FAUValidRequest.currencyInfo = {
   network: 'private',
   type: RequestLogicTypes.CURRENCY.ERC20 as any,
@@ -220,7 +220,7 @@ describe('erc20-batch-conversion-proxy', () => {
   describe(`Conversion:`, () => {
     beforeEach(() => {
       jest.restoreAllMocks();
-      EURRequest = Utils.deepCopy(EURValidRequest);
+      EURRequest = deepCopy(EURValidRequest);
       enrichedRequests = [
         {
           paymentNetworkId: ExtensionTypes.PAYMENT_NETWORK_ID.ANY_TO_ERC20_PROXY,
@@ -263,7 +263,7 @@ describe('erc20-batch-conversion-proxy', () => {
         );
       });
       it('should throw an error if request has no currency within paymentSettings', async () => {
-        const wrongPaymentSettings = Utils.deepCopy(conversionPaymentSettings);
+        const wrongPaymentSettings = deepCopy(conversionPaymentSettings);
         wrongPaymentSettings.currency = undefined;
         await expect(
           payBatchConversionProxyRequest(
@@ -546,7 +546,7 @@ describe('erc20-batch-conversion-proxy', () => {
 
   describe('No conversion:', () => {
     beforeEach(() => {
-      FAURequest = Utils.deepCopy(FAUValidRequest);
+      FAURequest = deepCopy(FAUValidRequest);
       enrichedRequests = [
         {
           paymentNetworkId: ExtensionTypes.PAYMENT_NETWORK_ID.ERC20_FEE_PROXY_CONTRACT,
diff --git a/packages/payment-processor/test/payment/any-to-erc20-proxy.test.ts b/packages/payment-processor/test/payment/any-to-erc20-proxy.test.ts
index da95d9f1bf..48822ca8d1 100644
--- a/packages/payment-processor/test/payment/any-to-erc20-proxy.test.ts
+++ b/packages/payment-processor/test/payment/any-to-erc20-proxy.test.ts
@@ -1,14 +1,11 @@
 import { Wallet, providers, BigNumber } from 'ethers';
-
 import {
   ClientTypes,
   ExtensionTypes,
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-
-import Utils from '@requestnetwork/utils';
-
+import { deepCopy } from '@requestnetwork/utils';
 import { approveErc20ForProxyConversionIfNeeded } from '../../src/payment/conversion-erc20';
 import { payAnyToErc20ProxyRequest } from '../../src/payment/any-to-erc20-proxy';
 import { ERC20__factory } from '@requestnetwork/smart-contracts/types';
@@ -116,7 +113,7 @@ describe('conversion-erc20-fee-proxy', () => {
     });
 
     it('should throw an error if request has no extension', async () => {
-      const request = Utils.deepCopy(validEuroRequest);
+      const request = deepCopy(validEuroRequest);
       request.extensions = [] as any;
 
       await expect(
diff --git a/packages/payment-processor/test/payment/any-to-eth-proxy.test.ts b/packages/payment-processor/test/payment/any-to-eth-proxy.test.ts
index c48df462a2..9ce12f0b2a 100644
--- a/packages/payment-processor/test/payment/any-to-eth-proxy.test.ts
+++ b/packages/payment-processor/test/payment/any-to-eth-proxy.test.ts
@@ -1,17 +1,15 @@
 import { Wallet, providers } from 'ethers';
-
 import {
   ClientTypes,
   ExtensionTypes,
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import { payAnyToEthProxyRequest } from '../../src/payment/any-to-eth-proxy';
 import { currencyManager } from './shared';
-
 import { IConversionPaymentSettings } from '../../src/index';
+
 const paymentSettings: IConversionPaymentSettings = {
   maxToSpend: '2500000000000000',
   currencyManager,
@@ -70,7 +68,7 @@ const validEuroRequest: ClientTypes.IRequestData = {
 describe('any-to-eth-proxy', () => {
   describe('error checking', () => {
     it('should throw an error if request has no extension', async () => {
-      const request = Utils.deepCopy(validEuroRequest);
+      const request = deepCopy(validEuroRequest);
       request.extensions = [] as any;
 
       await expect(payAnyToEthProxyRequest(request, wallet, paymentSettings)).rejects.toThrowError(
diff --git a/packages/payment-processor/test/payment/any-to-near.test.ts b/packages/payment-processor/test/payment/any-to-near.test.ts
index 8d43edb0d1..323bce6a07 100644
--- a/packages/payment-processor/test/payment/any-to-near.test.ts
+++ b/packages/payment-processor/test/payment/any-to-near.test.ts
@@ -1,10 +1,10 @@
 import { ExtensionTypes, RequestLogicTypes } from '@requestnetwork/types';
 import { PaymentReferenceCalculator } from '@requestnetwork/payment-detection';
-import * as Utils from '@requestnetwork/utils';
 
 import { IConversionPaymentSettings, _getPaymentUrl } from '../../src/payment';
 import * as nearUtils from '../../src/payment/utils-near';
 import { payNearConversionRequest } from '../../src/payment/near-conversion';
+import { deepCopy } from '@requestnetwork/utils';
 
 /* eslint-disable @typescript-eslint/no-unused-expressions */
 /* eslint-disable @typescript-eslint/await-thenable */
@@ -101,7 +101,7 @@ describe('payNearWithConversionRequest', () => {
         state: () => Promise.resolve({ amount: 100 }),
       }),
     } as any;
-    let invalidRequest = Utils.default.deepCopy(request);
+    let invalidRequest = deepCopy(request);
     invalidRequest = {
       ...invalidRequest,
       extensions: {
@@ -129,7 +129,7 @@ describe('payNearWithConversionRequest', () => {
         state: () => Promise.resolve({ amount: 100 }),
       }),
     } as any;
-    let invalidRequest = Utils.default.deepCopy(request);
+    let invalidRequest = deepCopy(request);
     invalidRequest = {
       ...invalidRequest,
       currencyInfo: {
@@ -154,7 +154,7 @@ describe('payNearWithConversionRequest', () => {
         state: () => Promise.resolve({ amount: 100 }),
       }),
     } as any;
-    let invalidRequest = Utils.default.deepCopy(request);
+    let invalidRequest = deepCopy(request);
     invalidRequest = {
       ...invalidRequest,
       extensions: {
diff --git a/packages/payment-processor/test/payment/erc20-batch-proxy.test.ts b/packages/payment-processor/test/payment/erc20-batch-proxy.test.ts
index 6a7e977ea8..800685317c 100644
--- a/packages/payment-processor/test/payment/erc20-batch-proxy.test.ts
+++ b/packages/payment-processor/test/payment/erc20-batch-proxy.test.ts
@@ -6,7 +6,7 @@ import {
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import { batchPaymentsArtifact } from '@requestnetwork/smart-contracts';
 
 import { getErc20Balance } from '../../src/payment/erc20';
@@ -74,7 +74,7 @@ const validRequest: ClientTypes.IRequestData = {
   version: '1.0',
 };
 
-const fauValidRequest = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+const fauValidRequest = deepCopy(validRequest) as ClientTypes.IRequestData;
 fauValidRequest.currencyInfo = {
   network: 'private',
   type: RequestLogicTypes.CURRENCY.ERC20 as any,
@@ -115,8 +115,8 @@ const testSuite = (
 
     beforeEach(() => {
       jest.restoreAllMocks();
-      request1 = Utils.deepCopy(requestTemplate1) as ClientTypes.IRequestData;
-      request2 = Utils.deepCopy(requestTemplate2) as ClientTypes.IRequestData;
+      request1 = deepCopy(requestTemplate1) as ClientTypes.IRequestData;
+      request2 = deepCopy(requestTemplate2) as ClientTypes.IRequestData;
     });
 
     it('should throw an error if the request is not erc20', async () => {
@@ -206,7 +206,7 @@ const testSuite = (
 
       it('should pay an ERC20 request with fees', async () => {
         // first approve the contract
-        const tmpRequest = Utils.deepCopy(request1);
+        const tmpRequest = deepCopy(request1);
         let amount = 1000;
         const isMultiToken = !sameCurrencyValue(request1, request2);
 
diff --git a/packages/payment-processor/test/payment/erc20-escrow-payment.test.ts b/packages/payment-processor/test/payment/erc20-escrow-payment.test.ts
index 3b9bef071b..1391f50088 100644
--- a/packages/payment-processor/test/payment/erc20-escrow-payment.test.ts
+++ b/packages/payment-processor/test/payment/erc20-escrow-payment.test.ts
@@ -5,7 +5,7 @@ import {
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import { Escrow } from '../../src/';
 import { getRequestPaymentValues, getSigner } from '../../src/payment/utils';
 
@@ -86,7 +86,7 @@ describe('erc20-escrow-payment tests:', () => {
       expect(values.paymentReference).toBe(paymentReference);
     });
     it('Should throw an error if the request is not erc20', async () => {
-      const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+      const request = deepCopy(validRequest) as ClientTypes.IRequestData;
       request.currencyInfo.type = RequestLogicTypes.CURRENCY.ETH;
 
       await expect(Escrow.payEscrow(request, wallet)).rejects.toThrowError(
@@ -94,21 +94,21 @@ describe('erc20-escrow-payment tests:', () => {
       );
     });
     it('Should throw an error if the currencyInfo has no value', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.currencyInfo.value = '';
       await expect(Escrow.payEscrow(request, wallet)).rejects.toThrowError(
         'request cannot be processed, or is not an pn-erc20-fee-proxy-contract request',
       );
     });
     it('Should throw an error if currencyInfo has no network', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.currencyInfo.network = '';
       await expect(Escrow.payEscrow(request, wallet)).rejects.toThrowError(
         'request cannot be processed, or is not an pn-erc20-fee-proxy-contract request',
       );
     });
     it('Should throw an error if request has no extension', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.extensions = [] as any;
 
       await expect(Escrow.payEscrow(request, wallet)).rejects.toThrowError(
@@ -203,7 +203,7 @@ describe('erc20-escrow-payment tests:', () => {
 
     describe('Normal Flow:', () => {
       it('Should pay the amount and fee from payers account', async () => {
-        const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+        const request = deepCopy(validRequest) as ClientTypes.IRequestData;
 
         const payerBeforeBalance = await getErc20Balance(request, payerAddress);
         const escrowBeforeBalance = await getErc20Balance(request, escrowAddress);
@@ -228,7 +228,7 @@ describe('erc20-escrow-payment tests:', () => {
       });
       it('Should withdraw funds and pay funds from escrow to payee', async () => {
         // Set a new requestID to test independent unit-tests.
-        const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+        const request = deepCopy(validRequest) as ClientTypes.IRequestData;
         request.requestId = 'aabb';
 
         // Execute payEscrow
@@ -258,7 +258,7 @@ describe('erc20-escrow-payment tests:', () => {
     describe('Emergency Flow:', () => {
       it('Should initiate emergency claim', async () => {
         // Set a new requestID to test independent unit-tests.
-        const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+        const request = deepCopy(validRequest) as ClientTypes.IRequestData;
         request.requestId = 'aacc';
 
         // Assign the paymentAddress as the payee.
@@ -277,7 +277,7 @@ describe('erc20-escrow-payment tests:', () => {
       });
       it('Should revert emergency claim', async () => {
         // Set a new requestID to test independent unit-tests.
-        const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+        const request = deepCopy(validRequest) as ClientTypes.IRequestData;
         request.requestId = 'aadd';
 
         // Assign the paymentAddress as the payee.
@@ -304,7 +304,7 @@ describe('erc20-escrow-payment tests:', () => {
     describe('Freeze Request Flow:', () => {
       it('Should freeze funds:', async () => {
         // Set a new requestID to test independent unit-tests.
-        const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+        const request = deepCopy(validRequest) as ClientTypes.IRequestData;
         request.requestId = 'aaee';
 
         // Execute payEscrow function on smart contract.
@@ -320,7 +320,7 @@ describe('erc20-escrow-payment tests:', () => {
       });
       it('Should revert if tried to withdraw to early:', async () => {
         // Set a new requestID to test independent unit-tests.
-        const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+        const request = deepCopy(validRequest) as ClientTypes.IRequestData;
         request.requestId = 'aaff';
 
         // Execute payEscrow.
diff --git a/packages/payment-processor/test/payment/erc20-fee-proxy.test.ts b/packages/payment-processor/test/payment/erc20-fee-proxy.test.ts
index 2c2003feb2..592b5a527f 100644
--- a/packages/payment-processor/test/payment/erc20-fee-proxy.test.ts
+++ b/packages/payment-processor/test/payment/erc20-fee-proxy.test.ts
@@ -6,7 +6,7 @@ import {
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import { erc20FeeProxyArtifact } from '@requestnetwork/smart-contracts';
 
 import { approveErc20, getErc20Balance } from '../../src/payment/erc20';
@@ -88,7 +88,7 @@ describe('erc20-fee-proxy', () => {
 
   describe('encodePayErc20FeeRequest (used to pay and swap to pay)', () => {
     it('should throw an error if the request is not erc20', async () => {
-      const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+      const request = deepCopy(validRequest) as ClientTypes.IRequestData;
       request.currencyInfo.type = RequestLogicTypes.CURRENCY.ETH;
 
       await expect(payErc20FeeProxyRequest(request, wallet)).rejects.toThrowError(
@@ -97,7 +97,7 @@ describe('erc20-fee-proxy', () => {
     });
 
     it('should throw an error if the currencyInfo has no value', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.currencyInfo.value = '';
       await expect(payErc20FeeProxyRequest(request, wallet)).rejects.toThrowError(
         'request cannot be processed, or is not an pn-erc20-fee-proxy-contract request',
@@ -105,7 +105,7 @@ describe('erc20-fee-proxy', () => {
     });
 
     it('should throw an error if currencyInfo has no network', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.currencyInfo.network = '';
       await expect(payErc20FeeProxyRequest(request, wallet)).rejects.toThrowError(
         'request cannot be processed, or is not an pn-erc20-fee-proxy-contract request',
@@ -113,7 +113,7 @@ describe('erc20-fee-proxy', () => {
     });
 
     it('should throw an error if request has no extension', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.extensions = [] as any;
 
       await expect(payErc20FeeProxyRequest(request, wallet)).rejects.toThrowError(
diff --git a/packages/payment-processor/test/payment/erc20-proxy.test.ts b/packages/payment-processor/test/payment/erc20-proxy.test.ts
index 9356a02d0a..5139c18ef9 100644
--- a/packages/payment-processor/test/payment/erc20-proxy.test.ts
+++ b/packages/payment-processor/test/payment/erc20-proxy.test.ts
@@ -6,7 +6,7 @@ import {
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import { approveErc20, getErc20Balance } from '../../src/payment/erc20';
 import { _getErc20ProxyPaymentUrl, payErc20ProxyRequest } from '../../src/payment/erc20-proxy';
 import { getRequestPaymentValues } from '../../src/payment/utils';
@@ -73,7 +73,7 @@ describe('getRequestPaymentValues', () => {
 
 describe('payErc20ProxyRequest', () => {
   it('should throw an error if the request is not erc20', async () => {
-    const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+    const request = deepCopy(validRequest) as ClientTypes.IRequestData;
     request.currencyInfo.type = RequestLogicTypes.CURRENCY.ETH;
 
     await expect(payErc20ProxyRequest(request, wallet)).rejects.toThrowError(
@@ -82,7 +82,7 @@ describe('payErc20ProxyRequest', () => {
   });
 
   it('should throw an error if the currencyInfo has no value', async () => {
-    const request = Utils.deepCopy(validRequest);
+    const request = deepCopy(validRequest);
     request.currencyInfo.value = '';
     await expect(payErc20ProxyRequest(request, wallet)).rejects.toThrowError(
       'request cannot be processed, or is not an pn-erc20-proxy-contract request',
@@ -90,7 +90,7 @@ describe('payErc20ProxyRequest', () => {
   });
 
   it('should throw an error if currencyInfo has no network', async () => {
-    const request = Utils.deepCopy(validRequest);
+    const request = deepCopy(validRequest);
     request.currencyInfo.network = '';
     await expect(payErc20ProxyRequest(request, wallet)).rejects.toThrowError(
       'request cannot be processed, or is not an pn-erc20-proxy-contract request',
@@ -98,7 +98,7 @@ describe('payErc20ProxyRequest', () => {
   });
 
   it('should throw an error if request has no extension', async () => {
-    const request = Utils.deepCopy(validRequest);
+    const request = deepCopy(validRequest);
     request.extensions = [] as any;
 
     await expect(payErc20ProxyRequest(request, wallet)).rejects.toThrowError(
diff --git a/packages/payment-processor/test/payment/erc777-stream.test.ts b/packages/payment-processor/test/payment/erc777-stream.test.ts
index 468ed981f1..2b01b425d9 100644
--- a/packages/payment-processor/test/payment/erc777-stream.test.ts
+++ b/packages/payment-processor/test/payment/erc777-stream.test.ts
@@ -7,7 +7,7 @@ import {
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 import {
   closeErc777StreamRequest,
@@ -91,7 +91,7 @@ describe('erc777-stream', () => {
 
   describe('encodePayErc20FeeRequest (used to pay and swap to pay)', () => {
     it('should throw an error if the request is not erc777', async () => {
-      const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+      const request = deepCopy(validRequest) as ClientTypes.IRequestData;
       request.currencyInfo.type = RequestLogicTypes.CURRENCY.ETH;
 
       await expect(payErc777StreamRequest(request, wallet)).rejects.toThrowError(
@@ -100,7 +100,7 @@ describe('erc777-stream', () => {
     });
 
     it('should throw an error if the currencyInfo has no value', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.currencyInfo.value = '';
       await expect(payErc777StreamRequest(request, wallet)).rejects.toThrowError(
         'request cannot be processed, or is not an pn-erc777-stream request',
@@ -108,7 +108,7 @@ describe('erc777-stream', () => {
     });
 
     it('should throw an error if currencyInfo has no network', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.currencyInfo.network = '';
       await expect(payErc777StreamRequest(request, wallet)).rejects.toThrowError(
         'request cannot be processed, or is not an pn-erc777-stream request',
@@ -116,7 +116,7 @@ describe('erc777-stream', () => {
     });
 
     it('should throw an error if request has no extension', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.extensions = [] as any;
 
       await expect(payErc777StreamRequest(request, wallet)).rejects.toThrowError(
diff --git a/packages/payment-processor/test/payment/eth-batch-proxy.test.ts b/packages/payment-processor/test/payment/eth-batch-proxy.test.ts
index 86327cbc84..f44ae6fbed 100644
--- a/packages/payment-processor/test/payment/eth-batch-proxy.test.ts
+++ b/packages/payment-processor/test/payment/eth-batch-proxy.test.ts
@@ -6,7 +6,7 @@ import {
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 import { payBatchProxyRequest, encodePayBatchRequest } from '../../src/payment/batch-proxy';
 import { getRequestPaymentValues } from '../../src/payment/utils';
@@ -67,7 +67,7 @@ const validRequest: ClientTypes.IRequestData = {
   version: '2.0.3',
 };
 
-const validRequest2 = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+const validRequest2 = deepCopy(validRequest) as ClientTypes.IRequestData;
 validRequest2.extensions = {
   [ExtensionTypes.PAYMENT_NETWORK_ID.ETH_INPUT_DATA]: {
     events: [],
@@ -93,7 +93,7 @@ describe('getRequestPaymentValues', () => {
 
 describe('payBatchProxyRequest', () => {
   it('should throw an error if one request is not eth', async () => {
-    const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+    const request = deepCopy(validRequest) as ClientTypes.IRequestData;
     request.currencyInfo.type = RequestLogicTypes.CURRENCY.ERC20;
 
     await expect(
@@ -104,7 +104,7 @@ describe('payBatchProxyRequest', () => {
   });
 
   it('should throw an error if in one request, currencyInfo has no network', async () => {
-    const request = Utils.deepCopy(validRequest);
+    const request = deepCopy(validRequest);
     request.currencyInfo.network = '';
     await expect(
       payBatchProxyRequest([validRequest, request], batchVersion, wallet, batchFee),
@@ -114,7 +114,7 @@ describe('payBatchProxyRequest', () => {
   });
 
   it('should throw an error if one request has no extension', async () => {
-    const request = Utils.deepCopy(validRequest);
+    const request = deepCopy(validRequest);
     request.extensions = [] as any;
 
     await expect(
diff --git a/packages/payment-processor/test/payment/eth-fee-proxy.test.ts b/packages/payment-processor/test/payment/eth-fee-proxy.test.ts
index b46174a3e7..5f39d8d0c7 100644
--- a/packages/payment-processor/test/payment/eth-fee-proxy.test.ts
+++ b/packages/payment-processor/test/payment/eth-fee-proxy.test.ts
@@ -1,13 +1,11 @@
 import { Wallet, providers } from 'ethers';
-
 import {
   ClientTypes,
   ExtensionTypes,
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
-
+import { deepCopy } from '@requestnetwork/utils';
 import {
   encodePayEthFeeProxyRequest,
   payEthFeeProxyRequest,
@@ -77,7 +75,7 @@ describe('getRequestPaymentValues', () => {
 
 describe('payEthFeeProxyRequest', () => {
   it('should throw an error if the request is not eth', async () => {
-    const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+    const request = deepCopy(validRequest) as ClientTypes.IRequestData;
     request.currencyInfo.type = RequestLogicTypes.CURRENCY.ERC20;
 
     await expect(payEthFeeProxyRequest(request, wallet)).rejects.toThrowError(
@@ -86,7 +84,7 @@ describe('payEthFeeProxyRequest', () => {
   });
 
   it('should throw an error if currencyInfo has no network', async () => {
-    const request = Utils.deepCopy(validRequest);
+    const request = deepCopy(validRequest);
     request.currencyInfo.network = '';
     await expect(payEthFeeProxyRequest(request, wallet)).rejects.toThrowError(
       'request cannot be processed, or is not an pn-eth-fee-proxy-contract request',
@@ -94,7 +92,7 @@ describe('payEthFeeProxyRequest', () => {
   });
 
   it('should throw an error if request has no extension', async () => {
-    const request = Utils.deepCopy(validRequest);
+    const request = deepCopy(validRequest);
     request.extensions = [] as any;
 
     await expect(payEthFeeProxyRequest(request, wallet)).rejects.toThrowError(
diff --git a/packages/payment-processor/test/payment/eth-input-data.test.ts b/packages/payment-processor/test/payment/eth-input-data.test.ts
index 5a52eeaca4..f4eaefd648 100644
--- a/packages/payment-processor/test/payment/eth-input-data.test.ts
+++ b/packages/payment-processor/test/payment/eth-input-data.test.ts
@@ -6,7 +6,7 @@ import {
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 import { _getEthPaymentUrl, payEthInputDataRequest } from '../../src/payment/eth-input-data';
 import { getRequestPaymentValues } from '../../src/payment/utils';
@@ -72,7 +72,7 @@ describe('getRequestPaymentValues', () => {
 
 describe('payEthInputDataRequest', () => {
   it('should throw an error if the request is not eth', async () => {
-    const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+    const request = deepCopy(validRequest) as ClientTypes.IRequestData;
     request.currencyInfo.type = RequestLogicTypes.CURRENCY.ERC20;
     await expect(payEthInputDataRequest(request, wallet)).rejects.toThrowError(
       'request cannot be processed, or is not an pn-eth-input-data request',
@@ -80,7 +80,7 @@ describe('payEthInputDataRequest', () => {
   });
 
   it('should throw an error if currencyInfo has no network', async () => {
-    const request = Utils.deepCopy(validRequest);
+    const request = deepCopy(validRequest);
     request.currencyInfo.network = '';
     await expect(payEthInputDataRequest(request, wallet)).rejects.toThrowError(
       'request cannot be processed, or is not an pn-eth-input-data request',
@@ -88,7 +88,7 @@ describe('payEthInputDataRequest', () => {
   });
 
   it('should throw an error if request has no extension', async () => {
-    const request = Utils.deepCopy(validRequest);
+    const request = deepCopy(validRequest);
     request.extensions = [] as any;
 
     await expect(payEthInputDataRequest(request, wallet)).rejects.toThrowError(
diff --git a/packages/payment-processor/test/payment/eth-proxy.test.ts b/packages/payment-processor/test/payment/eth-proxy.test.ts
index 534b592315..979090db5a 100644
--- a/packages/payment-processor/test/payment/eth-proxy.test.ts
+++ b/packages/payment-processor/test/payment/eth-proxy.test.ts
@@ -6,7 +6,7 @@ import {
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 import {
   encodePayEthProxyRequest,
@@ -76,7 +76,7 @@ describe('getRequestPaymentValues', () => {
 
 describe('payEthProxyRequest', () => {
   it('should throw an error if the request is not erc20', async () => {
-    const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+    const request = deepCopy(validRequest) as ClientTypes.IRequestData;
     request.currencyInfo.type = RequestLogicTypes.CURRENCY.ERC20;
 
     await expect(payEthProxyRequest(request, wallet)).rejects.toThrowError(
@@ -85,7 +85,7 @@ describe('payEthProxyRequest', () => {
   });
 
   it('should throw an error if currencyInfo has no network', async () => {
-    const request = Utils.deepCopy(validRequest);
+    const request = deepCopy(validRequest);
     request.currencyInfo.network = '';
     await expect(payEthProxyRequest(request, wallet)).rejects.toThrowError(
       'request cannot be processed, or is not an pn-eth-input-data request',
@@ -93,7 +93,7 @@ describe('payEthProxyRequest', () => {
   });
 
   it('should throw an error if request has no extension', async () => {
-    const request = Utils.deepCopy(validRequest);
+    const request = deepCopy(validRequest);
     request.extensions = [] as any;
 
     await expect(payEthProxyRequest(request, wallet)).rejects.toThrowError(
diff --git a/packages/payment-processor/test/payment/swap-any-to-erc20.test.ts b/packages/payment-processor/test/payment/swap-any-to-erc20.test.ts
index 886341368e..a95aec8c21 100644
--- a/packages/payment-processor/test/payment/swap-any-to-erc20.test.ts
+++ b/packages/payment-processor/test/payment/swap-any-to-erc20.test.ts
@@ -6,7 +6,7 @@ import {
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 import { approveErc20ForSwapWithConversionIfNeeded } from '../../src/payment/swap-conversion-erc20';
 import { ERC20, ERC20__factory } from '@requestnetwork/smart-contracts/types';
@@ -111,7 +111,7 @@ describe('swap-any-to-erc20', () => {
     });
 
     it('should throw an error if the payment network is wrong', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       delete request.extensions[ExtensionTypes.PAYMENT_NETWORK_ID.ANY_TO_ERC20_PROXY];
 
       await expect(
@@ -123,7 +123,7 @@ describe('swap-any-to-erc20', () => {
     });
 
     it('should throw an error if the conversion path is impossible', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       (request.currencyInfo = {
         type: RequestLogicTypes.CURRENCY.ISO4217,
         value: 'XXX',
diff --git a/packages/payment-processor/test/payment/swap-erc20-fee-proxy.test.ts b/packages/payment-processor/test/payment/swap-erc20-fee-proxy.test.ts
index d395917041..dd5e5a74af 100644
--- a/packages/payment-processor/test/payment/swap-erc20-fee-proxy.test.ts
+++ b/packages/payment-processor/test/payment/swap-erc20-fee-proxy.test.ts
@@ -6,7 +6,7 @@ import {
   IdentityTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 
 import { getErc20Balance } from '../../src/payment/erc20';
 import { approveErc20ForSwapToPayIfNeeded } from '../../src/payment/swap-erc20';
@@ -96,7 +96,7 @@ describe('swap-erc20-fee-proxy', () => {
       );
     });
     it('should throw an error if the request is not erc20', async () => {
-      const request = Utils.deepCopy(validRequest) as ClientTypes.IRequestData;
+      const request = deepCopy(validRequest) as ClientTypes.IRequestData;
       request.currencyInfo.type = RequestLogicTypes.CURRENCY.ETH;
 
       await expect(
@@ -107,7 +107,7 @@ describe('swap-erc20-fee-proxy', () => {
     });
 
     it('should throw an error if the currencyInfo has no value', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.currencyInfo.value = '';
       await expect(
         swapErc20FeeProxyRequest(request, wallet, validSwapSettings),
@@ -117,7 +117,7 @@ describe('swap-erc20-fee-proxy', () => {
     });
 
     it('should throw an error if currencyInfo has no network', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.currencyInfo.network = '';
       await expect(
         swapErc20FeeProxyRequest(request, wallet, validSwapSettings),
@@ -127,7 +127,7 @@ describe('swap-erc20-fee-proxy', () => {
     });
 
     it('should throw an error if request has no extension', async () => {
-      const request = Utils.deepCopy(validRequest);
+      const request = deepCopy(validRequest);
       request.extensions = [] as any;
 
       await expect(
diff --git a/packages/prototype-estimator/src/mock-storage.ts b/packages/prototype-estimator/src/mock-storage.ts
index 54dfd91030..db4166116b 100644
--- a/packages/prototype-estimator/src/mock-storage.ts
+++ b/packages/prototype-estimator/src/mock-storage.ts
@@ -1,7 +1,7 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { EventEmitter } from 'events';
+import { getCurrentTimestampInSecond, normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 /**
  * Storage layer implemented with in-memory hashmap, to be used for testing.
@@ -23,9 +23,9 @@ export default class MockStorage implements StorageTypes.IStorage {
     if (!content) {
       throw Error('Error: no content provided');
     }
-    const hash = MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(content));
+    const hash = MultiFormat.serialize(normalizeKeccak256Hash(content));
 
-    const nowTimestampInSec = Utils.getCurrentTimestampInSecond();
+    const nowTimestampInSec = getCurrentTimestampInSecond();
 
     this.data[hash] = {
       content,
@@ -84,7 +84,7 @@ export default class MockStorage implements StorageTypes.IStorage {
       },
     }));
 
-    const nowTimestampInSec = Utils.getCurrentTimestampInSecond();
+    const nowTimestampInSec = getCurrentTimestampInSecond();
 
     return {
       entries,
diff --git a/packages/request-client.js/src/api/request-network.ts b/packages/request-client.js/src/api/request-network.ts
index 8e9a9fe782..a74c16faa3 100644
--- a/packages/request-client.js/src/api/request-network.ts
+++ b/packages/request-client.js/src/api/request-network.ts
@@ -13,7 +13,7 @@ import {
   SignatureProviderTypes,
   TransactionTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy, supportedIdentities } from '@requestnetwork/utils';
 import {
   CurrencyManager,
   ICurrencyManager,
@@ -29,7 +29,7 @@ import localUtils from './utils';
  */
 export default class RequestNetwork {
   public paymentNetworkFactory: PaymentNetworkFactory;
-  public supportedIdentities: IdentityTypes.TYPE[] = Utils.identity.supportedIdentities;
+  public supportedIdentities: IdentityTypes.TYPE[] = supportedIdentities;
 
   private requestLogic: RequestLogicTypes.IRequestLogic;
   private transaction: TransactionTypes.ITransactionManager;
@@ -388,7 +388,7 @@ export default class RequestNetwork {
     }
 
     // avoid mutation of the parameters
-    const copiedRequestParameters = Utils.deepCopy(requestParameters);
+    const copiedRequestParameters = deepCopy(requestParameters);
     copiedRequestParameters.extensionsData = [];
 
     const detectionChain =
diff --git a/packages/request-client.js/src/api/request.ts b/packages/request-client.js/src/api/request.ts
index e403fa0f44..9d236811b5 100644
--- a/packages/request-client.js/src/api/request.ts
+++ b/packages/request-client.js/src/api/request.ts
@@ -1,16 +1,15 @@
 import { EventEmitter } from 'events';
-
 import {
   DeclarativePaymentDetector,
   EscrowERC20InfoRetriever,
 } from '@requestnetwork/payment-detection';
 import { IdentityTypes, PaymentTypes, RequestLogicTypes } from '@requestnetwork/types';
 import { ICurrencyManager } from '@requestnetwork/currency';
-import Utils from '@requestnetwork/utils';
 import * as Types from '../types';
 import ContentDataExtension from './content-data-extension';
 import localUtils from './utils';
 import { erc20EscrowToPayArtifact } from '@requestnetwork/smart-contracts';
+import { deepCopy } from '@requestnetwork/utils';
 
 /**
  * Class representing a request.
@@ -631,9 +630,9 @@ export default class Request {
       throw Error('request confirmation failed');
     }
 
-    let requestData = Utils.deepCopy(this.requestData);
+    let requestData = deepCopy(this.requestData);
 
-    let pending = Utils.deepCopy(this.pendingData);
+    let pending = deepCopy(this.pendingData);
     if (!requestData) {
       requestData = pending as RequestLogicTypes.IRequest;
       requestData.state = RequestLogicTypes.STATE.PENDING;
diff --git a/packages/request-client.js/src/api/utils.ts b/packages/request-client.js/src/api/utils.ts
index 7712094bf3..4eee0e979a 100644
--- a/packages/request-client.js/src/api/utils.ts
+++ b/packages/request-client.js/src/api/utils.ts
@@ -1,5 +1,5 @@
 import { RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { getCurrentTimestampInSecond } from '@requestnetwork/utils';
 /**
  * Collection of utils functions related to the library, meant to simplify its use.
  */
@@ -11,7 +11,7 @@ export default {
    *
    * @returns current timestamp in second
    */
-  getCurrentTimestampInSecond: Utils.getCurrentTimestampInSecond,
+  getCurrentTimestampInSecond,
 };
 
 /**
diff --git a/packages/request-client.js/src/http-data-access.ts b/packages/request-client.js/src/http-data-access.ts
index bb4f646131..cf43976699 100644
--- a/packages/request-client.js/src/http-data-access.ts
+++ b/packages/request-client.js/src/http-data-access.ts
@@ -1,9 +1,9 @@
 import { ClientTypes, DataAccessTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import axios, { AxiosRequestConfig } from 'axios';
 
 import { EventEmitter } from 'events';
 import httpConfigDefaults from './http-config-defaults';
+import { normalizeKeccak256Hash, retry } from '@requestnetwork/utils';
 
 // eslint-disable-next-line @typescript-eslint/no-var-requires
 const packageJson = require('../package.json');
@@ -100,7 +100,7 @@ export default class HttpDataAccess implements DataAccessTypes.IDataAccess {
       this.axiosConfig,
     );
 
-    const transactionHash: string = Utils.crypto.normalizeKeccak256Hash(transactionData).value;
+    const transactionHash: string = normalizeKeccak256Hash(transactionData).value;
 
     // Create the return result with EventEmitter
     const result: DataAccessTypes.IReturnPersistTransaction = Object.assign(
@@ -203,7 +203,7 @@ export default class HttpDataAccess implements DataAccessTypes.IDataAccess {
   ): Promise<any> {
     retryConfig.maxRetries = retryConfig.maxRetries ?? this.httpConfig.httpRequestMaxRetry;
     retryConfig.retryDelay = retryConfig.retryDelay ?? this.httpConfig.httpRequestRetryDelay;
-    const { data } = await Utils.retry(
+    const { data } = await retry(
       async () => axios.get(url, { ...this.axiosConfig, params }),
       retryConfig,
     )();
diff --git a/packages/request-client.js/src/http-metamask-data-access.ts b/packages/request-client.js/src/http-metamask-data-access.ts
index dd13b9fc0d..ca27f67cfb 100644
--- a/packages/request-client.js/src/http-metamask-data-access.ts
+++ b/packages/request-client.js/src/http-metamask-data-access.ts
@@ -1,11 +1,11 @@
 import { Block } from '@requestnetwork/data-access';
 import { requestHashSubmitterArtifact } from '@requestnetwork/smart-contracts';
 import { ClientTypes, DataAccessTypes, StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import axios, { AxiosRequestConfig } from 'axios';
 import { ethers } from 'ethers';
 import { EventEmitter } from 'events';
 import HttpDataAccess from './http-data-access';
+import { retry } from '@requestnetwork/utils';
 
 /**
  * Exposes a Data-Access module over HTTP
@@ -187,7 +187,7 @@ export default class HttpMetaMaskDataAccess extends HttpDataAccess {
     channelId: string,
     timestampBoundaries?: DataAccessTypes.ITimestampBoundaries,
   ): Promise<DataAccessTypes.IReturnGetTransactions> {
-    const { data } = await Utils.retry(
+    const { data } = await retry(
       async () =>
         axios.get(
           '/getTransactionsByChannelId',
diff --git a/packages/request-client.js/src/mock-storage.ts b/packages/request-client.js/src/mock-storage.ts
index 3599ce9638..6cfb0394d7 100644
--- a/packages/request-client.js/src/mock-storage.ts
+++ b/packages/request-client.js/src/mock-storage.ts
@@ -1,7 +1,7 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { EventEmitter } from 'events';
+import { getCurrentTimestampInSecond, normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 /**
  * Storage layer implemented with in-memory hashmap, to be used for testing.
@@ -23,9 +23,9 @@ export default class MockStorage implements StorageTypes.IStorage {
     if (!content) {
       throw Error('Error: no content provided');
     }
-    const hash = MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(content));
+    const hash = MultiFormat.serialize(normalizeKeccak256Hash(content));
 
-    const nowTimestampInSec = Utils.getCurrentTimestampInSecond();
+    const nowTimestampInSec = getCurrentTimestampInSecond();
 
     this.data.set(hash, {
       content,
@@ -43,9 +43,9 @@ export default class MockStorage implements StorageTypes.IStorage {
     if (!content) {
       throw Error('Error: no content provided');
     }
-    const hash = MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(content));
+    const hash = MultiFormat.serialize(normalizeKeccak256Hash(content));
 
-    const nowTimestampInSec = Utils.getCurrentTimestampInSecond();
+    const nowTimestampInSec = getCurrentTimestampInSecond();
 
     const dataToStore = {
       content,
@@ -117,7 +117,7 @@ export default class MockStorage implements StorageTypes.IStorage {
       },
     }));
 
-    const nowTimestampInSec = Utils.getCurrentTimestampInSecond();
+    const nowTimestampInSec = getCurrentTimestampInSecond();
 
     return {
       entries,
diff --git a/packages/request-client.js/test/api/request-network.test.ts b/packages/request-client.js/test/api/request-network.test.ts
index d0b2aa2817..fed1c9dd8f 100644
--- a/packages/request-client.js/test/api/request-network.test.ts
+++ b/packages/request-client.js/test/api/request-network.test.ts
@@ -1,12 +1,12 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { DataAccessTypes, SignatureTypes, TransactionTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import RequestNetwork from '../../src/api/request-network';
 
 import Request from '../../src/api/request';
 
 import * as TestData from '../data-test';
+import { normalizeKeccak256Hash, sign } from '@requestnetwork/utils';
 
 const mockDataAccess: DataAccessTypes.IDataAccess = {
   _getStatus: jest.fn(),
@@ -59,7 +59,7 @@ describe('api/request-network', () => {
         timestamp: 1549953337,
         transaction: { data: 'broken transaction' },
       };
-      const actionWrongSigner = Utils.signature.sign(TestData.data, {
+      const actionWrongSigner = sign(TestData.data, {
         method: SignatureTypes.METHOD.ECDSA,
         privateKey: '0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa',
       });
@@ -71,9 +71,7 @@ describe('api/request-network', () => {
           data: JSON.stringify(actionWrongSigner),
         },
       };
-      const requestId = MultiFormat.serialize(
-        Utils.crypto.normalizeKeccak256Hash(actionWrongSigner),
-      );
+      const requestId = MultiFormat.serialize(normalizeKeccak256Hash(actionWrongSigner));
 
       const mockDataAccessWithTxs: DataAccessTypes.IDataAccess = {
         ...mockDataAccess,
diff --git a/packages/request-client.js/test/data-test-real-btc.ts b/packages/request-client.js/test/data-test-real-btc.ts
index 8f22d33061..6ed341a2c9 100644
--- a/packages/request-client.js/test/data-test-real-btc.ts
+++ b/packages/request-client.js/test/data-test-real-btc.ts
@@ -4,7 +4,7 @@ import {
   SignatureTypes,
   TransactionTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { sign } from '@requestnetwork/utils';
 
 const payee = {
   identity: {
@@ -50,7 +50,7 @@ export const data = {
   version: '2.0.3',
 };
 
-export const action: RequestLogicTypes.IAction = Utils.signature.sign(data, payee.signatureParams);
+export const action: RequestLogicTypes.IAction = sign(data, payee.signatureParams);
 
 export const timestampedTransaction: TransactionTypes.ITimestampedTransaction = {
   state: TransactionTypes.TransactionState.PENDING,
diff --git a/packages/request-client.js/test/data-test.ts b/packages/request-client.js/test/data-test.ts
index 42c8a3339a..74b625611b 100644
--- a/packages/request-client.js/test/data-test.ts
+++ b/packages/request-client.js/test/data-test.ts
@@ -8,7 +8,7 @@ import {
   SignatureTypes,
   TransactionTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { normalizeKeccak256Hash, sign } from '@requestnetwork/utils';
 import AxiosMockAdapter from 'axios-mock-adapter';
 import axios from 'axios';
 import { Types } from '../src';
@@ -155,15 +155,12 @@ const dataWithDeclarativeNoPaymentInfo = {
   version: '2.0.3',
 };
 
-export const action: RequestLogicTypes.IAction = Utils.signature.sign(
-  dataWithDeclarative,
-  payee.signatureParams,
-);
-const actionWithoutExtensionsData: RequestLogicTypes.IAction = Utils.signature.sign(
+export const action: RequestLogicTypes.IAction = sign(dataWithDeclarative, payee.signatureParams);
+const actionWithoutExtensionsData: RequestLogicTypes.IAction = sign(
   dataWithoutExtensionsData,
   payee.signatureParams,
 );
-const actionWithoutPaymentInfo: RequestLogicTypes.IAction = Utils.signature.sign(
+const actionWithoutPaymentInfo: RequestLogicTypes.IAction = sign(
   dataWithDeclarativeNoPaymentInfo,
   payee.signatureParams,
 );
@@ -191,12 +188,9 @@ export const timestampedTransactionWithoutPaymentInfo: TransactionTypes.ITimesta
   transaction: { data: JSON.stringify(actionWithoutPaymentInfo) },
 };
 
-export const actionRequestId = MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(action));
+export const actionRequestId = MultiFormat.serialize(normalizeKeccak256Hash(action));
 
-export const anotherCreationAction: RequestLogicTypes.IAction = Utils.signature.sign(
-  data,
-  payer.signatureParams,
-);
+export const anotherCreationAction: RequestLogicTypes.IAction = sign(data, payer.signatureParams);
 
 export const anotherCreationTransactionConfirmed: TransactionTypes.ITimestampedTransaction = {
   state: TransactionTypes.TransactionState.PENDING,
@@ -220,7 +214,7 @@ const dataSecondRequest = {
   version: '2.0.3',
 };
 
-export const actionCreationSecondRequest: RequestLogicTypes.IAction = Utils.signature.sign(
+export const actionCreationSecondRequest: RequestLogicTypes.IAction = sign(
   dataSecondRequest,
   payee.signatureParams,
 );
@@ -232,7 +226,7 @@ export const timestampedTransactionSecondRequest: TransactionTypes.ITimestampedT
 };
 
 export const actionRequestIdSecondRequest = MultiFormat.serialize(
-  Utils.crypto.normalizeKeccak256Hash(actionCreationSecondRequest),
+  normalizeKeccak256Hash(actionCreationSecondRequest),
 );
 
 export const declarativePaymentNetwork: PaymentTypes.PaymentNetworkCreateParameters = {
@@ -265,11 +259,11 @@ export const signatureParametersDelegate: SignatureTypes.ISignatureParameters =
 export const fakeSignatureProvider: SignatureProviderTypes.ISignatureProvider = {
   sign: (data: any, signer: IdentityTypes.IIdentity): any => {
     if (signer.value === payee.identity.value) {
-      return Utils.signature.sign(data, signatureParametersPayee);
+      return sign(data, signatureParametersPayee);
     } else if (signer.value === payer.identity.value) {
-      return Utils.signature.sign(data, signatureParametersPayer);
+      return sign(data, signatureParametersPayer);
     } else {
-      return Utils.signature.sign(data, signatureParametersDelegate);
+      return sign(data, signatureParametersDelegate);
     }
   },
   supportedIdentityTypes: [IdentityTypes.TYPE.ETHEREUM_ADDRESS],
diff --git a/packages/request-client.js/test/declarative-payments.test.ts b/packages/request-client.js/test/declarative-payments.test.ts
index 6e105fc244..54a1fd9dec 100644
--- a/packages/request-client.js/test/declarative-payments.test.ts
+++ b/packages/request-client.js/test/declarative-payments.test.ts
@@ -20,7 +20,7 @@ import {
 } from '@requestnetwork/payment-detection';
 import { IRequestDataWithEvents } from '../src/types';
 import { CurrencyManager } from '@requestnetwork/currency';
-import Utils from '@requestnetwork/utils';
+import { sign } from '@requestnetwork/utils';
 
 const httpConfig: Partial<ClientTypes.IHttpDataAccessConfig> = {
   getConfirmationDeferDelay: 0,
@@ -417,7 +417,7 @@ describe('request-client.js: declarative payments', () => {
                   timestamp: TestData.arbitraryTimestamp,
                   transaction: {
                     data: JSON.stringify(
-                      Utils.signature.sign(
+                      sign(
                         {
                           name: RequestLogicTypes.ACTION_NAME.CREATE,
                           parameters: {
diff --git a/packages/request-client.js/test/index.test.ts b/packages/request-client.js/test/index.test.ts
index c4ee9e2a7c..140452cb74 100644
--- a/packages/request-client.js/test/index.test.ts
+++ b/packages/request-client.js/test/index.test.ts
@@ -9,7 +9,7 @@ import {
   PaymentTypes,
   RequestLogicTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { decrypt, random32Bytes } from '@requestnetwork/utils';
 import { ethers } from 'ethers';
 
 import AxiosMockAdapter from 'axios-mock-adapter';
@@ -54,7 +54,7 @@ const fakeDecryptionProvider: DecryptionProviderTypes.IDecryptionProvider = {
   ): Promise<string> => {
     switch (identity.value.toLowerCase()) {
       case encryptionData.identity.value:
-        return Utils.encryption.decrypt(data, encryptionData.decryptionParams);
+        return decrypt(data, encryptionData.decryptionParams);
 
       default:
         throw new Error('Identity not registered');
@@ -1439,10 +1439,8 @@ describe('request-client.js', () => {
         useMockStorage: true,
       });
       // generate address randomly to avoid collisions
-      const paymentAddress =
-        '0x' + (await Utils.crypto.CryptoWrapper.random32Bytes()).slice(12).toString('hex');
-      const refundAddress =
-        '0x' + (await Utils.crypto.CryptoWrapper.random32Bytes()).slice(12).toString('hex');
+      const paymentAddress = '0x' + (await random32Bytes()).slice(12).toString('hex');
+      const refundAddress = '0x' + (await random32Bytes()).slice(12).toString('hex');
 
       const paymentNetwork: PaymentTypes.PaymentNetworkCreateParameters = {
         id: ExtensionTypes.PAYMENT_NETWORK_ID.ERC20_ADDRESS_BASED,
@@ -1585,10 +1583,8 @@ describe('request-client.js', () => {
     });
 
     // generate address randomly to avoid collisions
-    const paymentAddress =
-      '0x' + (await Utils.crypto.CryptoWrapper.random32Bytes()).slice(12).toString('hex');
-    const refundAddress =
-      '0x' + (await Utils.crypto.CryptoWrapper.random32Bytes()).slice(12).toString('hex');
+    const paymentAddress = '0x' + (await random32Bytes()).slice(12).toString('hex');
+    const refundAddress = '0x' + (await random32Bytes()).slice(12).toString('hex');
 
     const paymentNetwork: PaymentTypes.PaymentNetworkCreateParameters = {
       id: ExtensionTypes.PAYMENT_NETWORK_ID.ERC20_ADDRESS_BASED,
diff --git a/packages/request-logic/specs/example/example.ts b/packages/request-logic/specs/example/example.ts
index a3d9af920f..69f4915b2f 100644
--- a/packages/request-logic/specs/example/example.ts
+++ b/packages/request-logic/specs/example/example.ts
@@ -6,9 +6,9 @@ import {
   SignatureProviderTypes,
   SignatureTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import RequestLogic from '../../src/requestLogicCore';
+import { sign } from '@requestnetwork/utils';
 
 async function foo(): Promise<void> {
   // Bob (the payee)
@@ -38,8 +38,8 @@ async function foo(): Promise<void> {
   const signatureProvider: SignatureProviderTypes.ISignatureProvider = {
     sign: (data: any, identity: IdentityTypes.IIdentity): any =>
       ({
-        [aliceRaw.identity.value as string]: Utils.signature.sign(data, aliceRaw.signatureParams),
-        [bobRaw.identity.value as string]: Utils.signature.sign(data, bobRaw.signatureParams),
+        [aliceRaw.identity.value as string]: sign(data, aliceRaw.signatureParams),
+        [bobRaw.identity.value as string]: sign(data, bobRaw.signatureParams),
       }[identity.value]),
     supportedIdentityTypes: [IdentityTypes.TYPE.ETHEREUM_ADDRESS],
     supportedMethods: [SignatureTypes.METHOD.ECDSA],
diff --git a/packages/request-logic/src/action.ts b/packages/request-logic/src/action.ts
index 1a15ca1dd0..bc2ec49b77 100644
--- a/packages/request-logic/src/action.ts
+++ b/packages/request-logic/src/action.ts
@@ -1,9 +1,9 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { IdentityTypes, RequestLogicTypes, SignatureProviderTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import * as Semver from 'semver';
 import Role from './role';
 import Version from './version';
+import { normalizeKeccak256Hash, recoverSigner } from '@requestnetwork/utils';
 
 /**
  * Function to manage Request logic action (object that will be interpreted to create or modify a request)
@@ -45,7 +45,7 @@ function createAction(
  * @returns RequestEnum.ROLE the role of the signer (payee, payer or third party)
  */
 function getSignerIdentityFromAction(action: RequestLogicTypes.IAction): IdentityTypes.IIdentity {
-  return Utils.signature.recover(action);
+  return recoverSigner(action);
 }
 
 /**
@@ -125,7 +125,7 @@ function getVersionFromAction(action: RequestLogicTypes.IAction): string {
 function getActionHash(action: RequestLogicTypes.IAction): string {
   // Before the version 2.0.0, the hash was computed without the signature
   if (Semver.lte(action.data.version, '2.0.0')) {
-    return MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(action.data));
+    return MultiFormat.serialize(normalizeKeccak256Hash(action.data));
   }
-  return MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(action));
+  return MultiFormat.serialize(normalizeKeccak256Hash(action));
 }
diff --git a/packages/request-logic/src/actions/accept.ts b/packages/request-logic/src/actions/accept.ts
index a8538323c0..712ad73206 100644
--- a/packages/request-logic/src/actions/accept.ts
+++ b/packages/request-logic/src/actions/accept.ts
@@ -1,9 +1,9 @@
 import { IdentityTypes, RequestLogicTypes, SignatureProviderTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import Action from '../action';
 import Request from '../request';
 import Version from '../version';
+import { deepCopy } from '@requestnetwork/utils';
 
 /**
  * Implementation of the action accept from request logic specification
@@ -69,7 +69,7 @@ function applyActionToRequest(
     throw new Error('Signer must be the payer');
   }
   // avoid to mutate the request
-  let requestCopied: RequestLogicTypes.IRequest = Utils.deepCopy(request);
+  let requestCopied: RequestLogicTypes.IRequest = deepCopy(request);
   requestCopied = Request.pushExtensionsData(requestCopied, action.data.parameters.extensionsData);
   requestCopied.events.push(generateEvent(action, timestamp, signer));
 
diff --git a/packages/request-logic/src/actions/addExtensionsData.ts b/packages/request-logic/src/actions/addExtensionsData.ts
index 66c711dac1..9fd3034ad5 100644
--- a/packages/request-logic/src/actions/addExtensionsData.ts
+++ b/packages/request-logic/src/actions/addExtensionsData.ts
@@ -1,9 +1,9 @@
 import { IdentityTypes, RequestLogicTypes, SignatureProviderTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import Action from '../action';
 import Request from '../request';
 import Version from '../version';
+import { deepCopy } from '@requestnetwork/utils';
 
 /**
  * Implementation of the action add extensions data from request logic specification
@@ -68,7 +68,7 @@ function applyActionToRequest(
   const signer: IdentityTypes.IIdentity = Action.getSignerIdentityFromAction(action);
 
   // avoid to mutate the request
-  let requestCopied: RequestLogicTypes.IRequest = Utils.deepCopy(request);
+  let requestCopied: RequestLogicTypes.IRequest = deepCopy(request);
   requestCopied = Request.pushExtensionsData(requestCopied, action.data.parameters.extensionsData);
   requestCopied.events.push(generateEvent(action, timestamp, signer));
 
diff --git a/packages/request-logic/src/actions/cancel.ts b/packages/request-logic/src/actions/cancel.ts
index 48d432b21b..b09816a3b3 100644
--- a/packages/request-logic/src/actions/cancel.ts
+++ b/packages/request-logic/src/actions/cancel.ts
@@ -1,9 +1,9 @@
 import { IdentityTypes, RequestLogicTypes, SignatureProviderTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import Action from '../action';
 import Request from '../request';
 import Version from '../version';
+import { deepCopy } from '@requestnetwork/utils';
 
 /**
  * Implementation of the action cancel from request logic specification
@@ -56,7 +56,7 @@ function applyActionToRequest(
   const signerRole = Request.getRoleInRequest(signer, request);
 
   // avoid to mutate the request
-  let requestCopied: RequestLogicTypes.IRequest = Utils.deepCopy(request);
+  let requestCopied: RequestLogicTypes.IRequest = deepCopy(request);
   requestCopied = Request.pushExtensionsData(requestCopied, action.data.parameters.extensionsData);
   requestCopied.events.push(generateEvent(action, timestamp, signer));
 
diff --git a/packages/request-logic/src/actions/create.ts b/packages/request-logic/src/actions/create.ts
index bd0b60c80e..c6c24ca7b6 100644
--- a/packages/request-logic/src/actions/create.ts
+++ b/packages/request-logic/src/actions/create.ts
@@ -1,8 +1,14 @@
 import { IdentityTypes, RequestLogicTypes, SignatureProviderTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import * as Semver from 'semver';
 import Action from '../action';
 import Version from '../version';
+import {
+  deepCopy,
+  getCurrentTimestampInSecond,
+  identityHasError,
+  isString,
+  isValidAmount,
+} from '@requestnetwork/utils';
 
 /**
  * Implementation of the request logic specification
@@ -32,20 +38,20 @@ function format(
     throw new Error('payee or PayerId must be given');
   }
 
-  if (!Utils.amount.isValid(requestParameters.expectedAmount)) {
+  if (!isValidAmount(requestParameters.expectedAmount)) {
     throw new Error('expectedAmount must be a positive integer');
   }
 
-  if (requestParameters.payee && Utils.identity.hasError(requestParameters.payee)) {
-    throw new Error(`payee: ${Utils.identity.hasError(requestParameters.payee)}̀`);
+  if (requestParameters.payee && identityHasError(requestParameters.payee)) {
+    throw new Error(`payee: ${identityHasError(requestParameters.payee)}̀`);
   }
 
-  if (requestParameters.payer && Utils.identity.hasError(requestParameters.payer)) {
-    throw new Error(`payer: ${Utils.identity.hasError(requestParameters.payer)}̀`);
+  if (requestParameters.payer && identityHasError(requestParameters.payer)) {
+    throw new Error(`payer: ${identityHasError(requestParameters.payer)}̀`);
   }
 
   if (!requestParameters.timestamp) {
-    requestParameters.timestamp = Utils.getCurrentTimestampInSecond();
+    requestParameters.timestamp = getCurrentTimestampInSecond();
   }
 
   // convert expectedAmount to string to have a consistent numbering
@@ -85,17 +91,17 @@ function createRequest(
     throw new Error('action.parameters.payee or action.parameters.payer must be given');
   }
 
-  if (action.data.parameters.payee && Utils.identity.hasError(action.data.parameters.payee)) {
-    throw new Error(`payee: ${Utils.identity.hasError(action.data.parameters.payee)}̀`);
+  if (action.data.parameters.payee && identityHasError(action.data.parameters.payee)) {
+    throw new Error(`payee: ${identityHasError(action.data.parameters.payee)}̀`);
   }
 
-  if (action.data.parameters.payer && Utils.identity.hasError(action.data.parameters.payer)) {
-    throw new Error(`payer: ${Utils.identity.hasError(action.data.parameters.payer)}̀`);
+  if (action.data.parameters.payer && identityHasError(action.data.parameters.payer)) {
+    throw new Error(`payer: ${identityHasError(action.data.parameters.payer)}̀`);
   }
 
   if (
-    !Utils.isString(action.data.parameters.expectedAmount) ||
-    !Utils.amount.isValid(action.data.parameters.expectedAmount)
+    !isString(action.data.parameters.expectedAmount) ||
+    !isValidAmount(action.data.parameters.expectedAmount)
   ) {
     throw new Error(
       'action.parameters.expectedAmount must be a string representing a positive integer',
@@ -105,7 +111,7 @@ function createRequest(
   const signer: IdentityTypes.IIdentity = Action.getSignerIdentityFromAction(action);
 
   // Copy to not modify the action itself
-  const request: RequestLogicTypes.IRequest = Utils.deepCopy(action.data.parameters);
+  const request: RequestLogicTypes.IRequest = deepCopy(action.data.parameters);
   request.extensions = {};
   request.requestId = Action.getRequestId(action);
   request.version = Action.getVersionFromAction(action);
diff --git a/packages/request-logic/src/actions/increaseExpectedAmount.ts b/packages/request-logic/src/actions/increaseExpectedAmount.ts
index 0a47e68588..f273b092d2 100644
--- a/packages/request-logic/src/actions/increaseExpectedAmount.ts
+++ b/packages/request-logic/src/actions/increaseExpectedAmount.ts
@@ -1,9 +1,9 @@
 import { IdentityTypes, RequestLogicTypes, SignatureProviderTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import Action from '../action';
 import Request from '../request';
 import Version from '../version';
+import { addAmount, deepCopy, isValidAmount } from '@requestnetwork/utils';
 
 /**
  * Implementation of the action increaseExpectedAmount from request logic specification
@@ -27,7 +27,7 @@ function format(
   signerIdentity: IdentityTypes.IIdentity,
   signatureProvider: SignatureProviderTypes.ISignatureProvider,
 ): Promise<RequestLogicTypes.IAction> {
-  if (!Utils.amount.isValid(increaseAmountParameters.deltaAmount)) {
+  if (!isValidAmount(increaseAmountParameters.deltaAmount)) {
     throw new Error('deltaAmount must be a string representing a positive integer');
   }
 
@@ -61,7 +61,7 @@ function applyActionToRequest(
   if (!action.data.parameters.deltaAmount) {
     throw new Error('deltaAmount must be given');
   }
-  if (!Utils.amount.isValid(action.data.parameters.deltaAmount)) {
+  if (!isValidAmount(action.data.parameters.deltaAmount)) {
     throw new Error('deltaAmount must be a string representing a positive integer');
   }
 
@@ -69,7 +69,7 @@ function applyActionToRequest(
   const signerRole = Request.getRoleInRequest(signer, request);
 
   // avoid to mutate the request
-  let requestCopied: RequestLogicTypes.IRequest = Utils.deepCopy(request);
+  let requestCopied: RequestLogicTypes.IRequest = deepCopy(request);
   requestCopied = Request.pushExtensionsData(requestCopied, action.data.parameters.extensionsData);
   requestCopied.events.push(generateEvent(action, timestamp, signer));
 
@@ -78,7 +78,7 @@ function applyActionToRequest(
       throw new Error('the request must not be canceled');
     }
     // increase the expected amount and store it as string
-    requestCopied.expectedAmount = Utils.amount.add(
+    requestCopied.expectedAmount = addAmount(
       request.expectedAmount,
       action.data.parameters.deltaAmount,
     );
diff --git a/packages/request-logic/src/actions/reduceExpectedAmount.ts b/packages/request-logic/src/actions/reduceExpectedAmount.ts
index dda8868dfa..dfc0485a6e 100644
--- a/packages/request-logic/src/actions/reduceExpectedAmount.ts
+++ b/packages/request-logic/src/actions/reduceExpectedAmount.ts
@@ -1,9 +1,9 @@
 import { IdentityTypes, RequestLogicTypes, SignatureProviderTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import Action from '../action';
 import Request from '../request';
 import Version from '../version';
+import { deepCopy, isValidAmount, reduceAmount } from '@requestnetwork/utils';
 
 /**
  * Implementation of the action reduceExpectedAmount from request logic specification
@@ -27,7 +27,7 @@ function format(
   signerIdentity: IdentityTypes.IIdentity,
   signatureProvider: SignatureProviderTypes.ISignatureProvider,
 ): Promise<RequestLogicTypes.IAction> {
-  if (!Utils.amount.isValid(reduceAmountParameters.deltaAmount)) {
+  if (!isValidAmount(reduceAmountParameters.deltaAmount)) {
     throw new Error('deltaAmount must be a string representing a positive integer');
   }
 
@@ -61,7 +61,7 @@ function applyActionToRequest(
   if (!action.data.parameters.deltaAmount) {
     throw new Error('deltaAmount must be given');
   }
-  if (!Utils.amount.isValid(action.data.parameters.deltaAmount)) {
+  if (!isValidAmount(action.data.parameters.deltaAmount)) {
     throw new Error('deltaAmount must be a string representing a positive integer');
   }
 
@@ -69,7 +69,7 @@ function applyActionToRequest(
   const signerRole = Request.getRoleInRequest(signer, request);
 
   // avoid to mutate the request
-  let requestCopied: RequestLogicTypes.IRequest = Utils.deepCopy(request);
+  let requestCopied: RequestLogicTypes.IRequest = deepCopy(request);
   requestCopied = Request.pushExtensionsData(requestCopied, action.data.parameters.extensionsData);
   requestCopied.events.push(generateEvent(action, timestamp, signer));
 
@@ -78,7 +78,7 @@ function applyActionToRequest(
       throw new Error('the request must not be canceled');
     }
     // reduce the expected amount and store it as string or throw if the result is not valid
-    requestCopied.expectedAmount = Utils.amount.reduce(
+    requestCopied.expectedAmount = reduceAmount(
       request.expectedAmount,
       action.data.parameters.deltaAmount,
     );
diff --git a/packages/request-logic/src/request-logic.ts b/packages/request-logic/src/request-logic.ts
index 6ad87a8312..63b5c323c3 100644
--- a/packages/request-logic/src/request-logic.ts
+++ b/packages/request-logic/src/request-logic.ts
@@ -9,8 +9,8 @@ import {
   SignatureProviderTypes,
   TransactionTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import RequestLogicCore from './requestLogicCore';
+import { normalizeKeccak256Hash, notNull, uniqueByProperty } from '@requestnetwork/utils';
 
 /**
  * Implementation of Request Logic
@@ -457,7 +457,7 @@ export default class RequestLogic implements RequestLogicTypes.IRequestLogic {
     updatedBetween?: RequestLogicTypes.ITimestampBoundaries,
   ): Promise<RequestLogicTypes.IReturnGetRequestsByTopic> {
     // hash all the topics
-    const hashedTopic = MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(topic));
+    const hashedTopic = MultiFormat.serialize(normalizeKeccak256Hash(topic));
 
     const getChannelsResult = await this.transactionManager.getChannelsByTopic(
       hashedTopic,
@@ -477,7 +477,7 @@ export default class RequestLogic implements RequestLogicTypes.IRequestLogic {
   ): Promise<RequestLogicTypes.IReturnGetRequestsByTopic> {
     // hash all the topics
     const hashedTopics = topics.map((topic) =>
-      MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(topic)),
+      MultiFormat.serialize(normalizeKeccak256Hash(topic)),
     );
 
     const getChannelsResult = await this.transactionManager.getChannelsByMultipleTopics(
@@ -517,7 +517,7 @@ export default class RequestLogic implements RequestLogicTypes.IRequestLogic {
 
     // hash all the topics
     const hashedTopics = topics.map((topic) =>
-      MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(topic)),
+      MultiFormat.serialize(normalizeKeccak256Hash(topic)),
     );
 
     return {
@@ -542,16 +542,16 @@ export default class RequestLogic implements RequestLogicTypes.IRequestLogic {
     const resultGetTx = await this.transactionManager.getTransactionsByChannelId(requestId);
     const actions = resultGetTx.result.transactions
       // filter the actions ignored by the previous layers
-      .filter(Utils.notNull)
+      .filter(notNull)
       .sort((a, b) => a.timestamp - b.timestamp);
 
     // eslint-disable-next-line prefer-const
     let { ignoredTransactions, keptTransactions } = this.removeOldPendingTransactions(actions);
 
     // array of transaction without duplicates to avoid replay attack
-    const timestampedActionsWithoutDuplicates = Utils.uniqueByProperty(
+    const timestampedActionsWithoutDuplicates = uniqueByProperty(
       keptTransactions
-        .filter(Utils.notNull)
+        .filter(notNull)
         .map((t) => {
           try {
             return {
@@ -568,7 +568,7 @@ export default class RequestLogic implements RequestLogicTypes.IRequestLogic {
             return;
           }
         })
-        .filter(Utils.notNull),
+        .filter(notNull),
       'action',
     );
 
@@ -678,10 +678,10 @@ export default class RequestLogic implements RequestLogicTypes.IRequestLogic {
           transactionsByChannel[channelId],
         );
 
-        const timestampedActionsWithoutDuplicates = Utils.uniqueByProperty(
+        const timestampedActionsWithoutDuplicates = uniqueByProperty(
           keptTransactions
             // filter the actions ignored by the previous layers
-            .filter(Utils.notNull)
+            .filter(notNull)
             .map((t) => {
               try {
                 return {
@@ -698,7 +698,7 @@ export default class RequestLogic implements RequestLogicTypes.IRequestLogic {
                 return;
               }
             })
-            .filter(Utils.notNull),
+            .filter(notNull),
           'action',
         );
 
@@ -820,8 +820,8 @@ export default class RequestLogic implements RequestLogicTypes.IRequestLogic {
         if (key in pendingRequestState) {
           // TODO: Should find a better way to do that
           if (
-            Utils.crypto.normalizeKeccak256Hash(pendingRequestState[key]).value !==
-            Utils.crypto.normalizeKeccak256Hash(confirmedRequestState[key]).value
+            normalizeKeccak256Hash(pendingRequestState[key]).value !==
+            normalizeKeccak256Hash(confirmedRequestState[key]).value
           ) {
             if (!pending) {
               pending = {};
diff --git a/packages/request-logic/src/request.ts b/packages/request-logic/src/request.ts
index 25eb798a7e..04b8720e67 100644
--- a/packages/request-logic/src/request.ts
+++ b/packages/request-logic/src/request.ts
@@ -1,7 +1,7 @@
 import { IdentityTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import Role from './role';
+import { isValidAmount } from '@requestnetwork/utils';
 
 /**
  * Module to manage a request
@@ -63,7 +63,7 @@ function checkRequest(request: RequestLogicTypes.IRequest): boolean {
   if (request.payer && request.payer.type !== IdentityTypes.TYPE.ETHEREUM_ADDRESS) {
     throw Error('request.payer.type not supported');
   }
-  if (!Utils.amount.isValid(request.expectedAmount)) {
+  if (!isValidAmount(request.expectedAmount)) {
     throw Error('expectedAmount must be a positive integer');
   }
   return true;
diff --git a/packages/request-logic/src/requestLogicCore.ts b/packages/request-logic/src/requestLogicCore.ts
index 2d3c497c9a..f4da831dd3 100644
--- a/packages/request-logic/src/requestLogicCore.ts
+++ b/packages/request-logic/src/requestLogicCore.ts
@@ -1,5 +1,4 @@
 import { AdvancedLogicTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import Action from './action';
 import Request from './request';
 
@@ -9,6 +8,7 @@ import CancelAction from './actions/cancel';
 import CreateAction from './actions/create';
 import IncreaseExpectedAmountAction from './actions/increaseExpectedAmount';
 import ReduceExpectedAmountAction from './actions/reduceExpectedAmount';
+import { deepCopy } from '@requestnetwork/utils';
 
 /**
  * Implementation of Request Logic Core
@@ -45,7 +45,7 @@ function applyActionToRequest(
   }
 
   // we don't want to modify the original request state
-  const requestCopied: RequestLogicTypes.IRequest | null = request ? Utils.deepCopy(request) : null;
+  const requestCopied: RequestLogicTypes.IRequest | null = request ? deepCopy(request) : null;
 
   let requestAfterApply: RequestLogicTypes.IRequest | null = null;
 
diff --git a/packages/request-logic/src/role.ts b/packages/request-logic/src/role.ts
index 098cb99f19..b918392163 100644
--- a/packages/request-logic/src/role.ts
+++ b/packages/request-logic/src/role.ts
@@ -1,5 +1,5 @@
 import { IdentityTypes, RequestLogicTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { areEqualIdentities } from '@requestnetwork/utils';
 
 /**
  * Function to manage Request Logic Role
@@ -17,10 +17,10 @@ export default {
  * @returns Types.ROLE the role of identity in parameters
  */
 function getRole(identity: IdentityTypes.IIdentity, parameters: any): RequestLogicTypes.ROLE {
-  if (parameters.payee && Utils.identity.areEqual(parameters.payee, identity)) {
+  if (parameters.payee && areEqualIdentities(parameters.payee, identity)) {
     return RequestLogicTypes.ROLE.PAYEE;
   }
-  if (parameters.payer && Utils.identity.areEqual(parameters.payer, identity)) {
+  if (parameters.payer && areEqualIdentities(parameters.payer, identity)) {
     return RequestLogicTypes.ROLE.PAYER;
   }
 
diff --git a/packages/request-logic/test/index.test.ts b/packages/request-logic/test/index.test.ts
index e8650a8dff..d0b3cbd0dc 100644
--- a/packages/request-logic/test/index.test.ts
+++ b/packages/request-logic/test/index.test.ts
@@ -2,12 +2,12 @@ import { EventEmitter } from 'events';
 
 import MultiFormat from '@requestnetwork/multi-format';
 import { AdvancedLogicTypes, RequestLogicTypes, TransactionTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import { RequestLogic } from '../src/index';
 import * as TestData from './unit/utils/test-data-generator';
 
 import Version from '../src/version';
+import { normalizeKeccak256Hash, sign } from '@requestnetwork/utils';
 
 const CURRENT_VERSION = Version.currentVersion;
 
@@ -26,8 +26,8 @@ const unsignedAction: RequestLogicTypes.IUnsignedAction = {
   parameters: createParams,
   version: CURRENT_VERSION,
 };
-const action = Utils.signature.sign(unsignedAction, TestData.payeeRaw.signatureParams);
-const requestId = MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(action));
+const action = sign(unsignedAction, TestData.payeeRaw.signatureParams);
+const requestId = MultiFormat.serialize(normalizeKeccak256Hash(action));
 
 const fakeTxHash = '01aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';
 
@@ -167,8 +167,8 @@ describe('index', () => {
         JSON.stringify(action),
         requestId,
         [
-          MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(TestData.payeeRaw.identity)),
-          MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(TestData.payerRaw.identity)),
+          MultiFormat.serialize(normalizeKeccak256Hash(TestData.payeeRaw.identity)),
+          MultiFormat.serialize(normalizeKeccak256Hash(TestData.payerRaw.identity)),
         ],
       );
     });
@@ -324,8 +324,8 @@ describe('index', () => {
         JSON.stringify(action),
         requestId,
         [
-          MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(TestData.payeeRaw.identity)),
-          MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(TestData.payerRaw.identity)),
+          MultiFormat.serialize(normalizeKeccak256Hash(TestData.payeeRaw.identity)),
+          MultiFormat.serialize(normalizeKeccak256Hash(TestData.payerRaw.identity)),
         ],
         [TestData.payeeRaw.encryptionParams, TestData.payerRaw.encryptionParams],
       );
@@ -496,7 +496,7 @@ describe('index', () => {
     });
 
     it('cannot accept as payee', async () => {
-      const actionCreate = Utils.signature.sign(
+      const actionCreate = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -592,7 +592,7 @@ describe('index', () => {
     });
 
     it('cannot cancel if not payee or payer', async () => {
-      const actionCreate = Utils.signature.sign(
+      const actionCreate = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -693,7 +693,7 @@ describe('index', () => {
       ).rejects.toThrowError('You must give a signature provider to create actions');
     });
     it('cannot increaseExpectedAmountRequest as payee', async () => {
-      const actionCreate = Utils.signature.sign(
+      const actionCreate = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -799,7 +799,7 @@ describe('index', () => {
       ).rejects.toThrowError('You must give a signature provider to create actions');
     });
     it('cannot reduceExpectedAmountRequest as payer', async () => {
-      const actionCreate = Utils.signature.sign(
+      const actionCreate = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -908,7 +908,7 @@ describe('index', () => {
         },
       };
 
-      const actionCreate = Utils.signature.sign(
+      const actionCreate = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -962,7 +962,7 @@ describe('index', () => {
 
   describe('getRequestFromId', () => {
     it('can getRequestFromId', async () => {
-      const actionCreate: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -980,7 +980,7 @@ describe('index', () => {
         TestData.payeeRaw.signatureParams,
       );
 
-      const actionAccept: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionAccept: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.ACCEPT,
           parameters: {
@@ -991,7 +991,7 @@ describe('index', () => {
         TestData.payerRaw.signatureParams,
       );
 
-      const rxReduce: RequestLogicTypes.IAction = Utils.signature.sign(
+      const rxReduce: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.REDUCE_EXPECTED_AMOUNT,
           parameters: {
@@ -1098,7 +1098,7 @@ describe('index', () => {
     });
 
     it('can getRequestFromId ignore old pending transaction', async () => {
-      const actionCreate: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -1116,7 +1116,7 @@ describe('index', () => {
         TestData.payeeRaw.signatureParams,
       );
 
-      const actionAccept: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionAccept: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.ACCEPT,
           parameters: {
@@ -1127,7 +1127,7 @@ describe('index', () => {
         TestData.payerRaw.signatureParams,
       );
 
-      const rxReduce: RequestLogicTypes.IAction = Utils.signature.sign(
+      const rxReduce: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.REDUCE_EXPECTED_AMOUNT,
           parameters: {
@@ -1237,7 +1237,7 @@ describe('index', () => {
     });
 
     it('can getRequestFromId with pending transaction', async () => {
-      const actionCreate: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -1255,7 +1255,7 @@ describe('index', () => {
         TestData.payeeRaw.signatureParams,
       );
 
-      const actionAccept: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionAccept: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.ACCEPT,
           parameters: {
@@ -1266,7 +1266,7 @@ describe('index', () => {
         TestData.payerRaw.signatureParams,
       );
 
-      const rxReduce: RequestLogicTypes.IAction = Utils.signature.sign(
+      const rxReduce: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.REDUCE_EXPECTED_AMOUNT,
           parameters: {
@@ -1376,7 +1376,7 @@ describe('index', () => {
     });
 
     it('can getRequestFromId ignore the same transactions even with different case', async () => {
-      const actionCreate: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -1394,7 +1394,7 @@ describe('index', () => {
         TestData.payeeRaw.signatureParams,
       );
 
-      const actionAccept: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionAccept: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.ACCEPT,
           parameters: {
@@ -1405,7 +1405,7 @@ describe('index', () => {
         TestData.payerRaw.signatureParams,
       );
 
-      const actionReduce: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionReduce: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.REDUCE_EXPECTED_AMOUNT,
           parameters: {
@@ -1417,7 +1417,7 @@ describe('index', () => {
         TestData.payeeRaw.signatureParams,
       );
 
-      const actionReduce2: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionReduce2: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.REDUCE_EXPECTED_AMOUNT,
           parameters: {
@@ -1538,7 +1538,7 @@ describe('index', () => {
     });
 
     it('can getRequestFromId do not ignore the same transactions if different nonces', async () => {
-      const actionCreate: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -1556,7 +1556,7 @@ describe('index', () => {
         TestData.payeeRaw.signatureParams,
       );
 
-      const actionAccept: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionAccept: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.ACCEPT,
           parameters: {
@@ -1567,7 +1567,7 @@ describe('index', () => {
         TestData.payerRaw.signatureParams,
       );
 
-      const actionReduce: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionReduce: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.REDUCE_EXPECTED_AMOUNT,
           parameters: {
@@ -1579,7 +1579,7 @@ describe('index', () => {
         TestData.payeeRaw.signatureParams,
       );
 
-      const actionReduce2: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionReduce2: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.REDUCE_EXPECTED_AMOUNT,
           parameters: {
@@ -1736,7 +1736,7 @@ describe('index', () => {
     });
 
     it('should ignored the corrupted data (e.g: wrong properties)', async () => {
-      const actionCorrupted: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCorrupted: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -1811,15 +1811,13 @@ describe('index', () => {
         },
         version: CURRENT_VERSION,
       };
-      const actionCreate: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate: RequestLogicTypes.IAction = sign(
         unsignedActionCreation,
         TestData.payeeRaw.signatureParams,
       );
-      const newRequestId = MultiFormat.serialize(
-        Utils.crypto.normalizeKeccak256Hash(unsignedActionCreation),
-      );
+      const newRequestId = MultiFormat.serialize(normalizeKeccak256Hash(unsignedActionCreation));
 
-      const actionAccept: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionAccept: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.ACCEPT,
           parameters: {
@@ -1830,7 +1828,7 @@ describe('index', () => {
         TestData.payerRaw.signatureParams,
       );
 
-      const rxReduce: RequestLogicTypes.IAction = Utils.signature.sign(
+      const rxReduce: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.REDUCE_EXPECTED_AMOUNT,
           parameters: {
@@ -1856,15 +1854,13 @@ describe('index', () => {
         },
         version: CURRENT_VERSION,
       };
-      const actionCreate2: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate2: RequestLogicTypes.IAction = sign(
         unsignedActionCreation2,
         TestData.payeeRaw.signatureParams,
       );
-      const newRequestId2 = MultiFormat.serialize(
-        Utils.crypto.normalizeKeccak256Hash(unsignedActionCreation2),
-      );
+      const newRequestId2 = MultiFormat.serialize(normalizeKeccak256Hash(unsignedActionCreation2));
 
-      const actionCancel2: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCancel2: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CANCEL,
           parameters: {
@@ -1889,13 +1885,11 @@ describe('index', () => {
         },
         version: CURRENT_VERSION,
       };
-      const actionCreate3: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate3: RequestLogicTypes.IAction = sign(
         unsignedActionCreation3,
         TestData.payeeRaw.signatureParams,
       );
-      const newRequestId3 = MultiFormat.serialize(
-        Utils.crypto.normalizeKeccak256Hash(unsignedActionCreation3),
-      );
+      const newRequestId3 = MultiFormat.serialize(normalizeKeccak256Hash(unsignedActionCreation3));
 
       const meta = {
         dataAccessMeta: { [requestId]: [], [newRequestId2]: [], [newRequestId3]: [] },
@@ -1980,15 +1974,13 @@ describe('index', () => {
         },
         version: CURRENT_VERSION,
       };
-      const actionCreate: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate: RequestLogicTypes.IAction = sign(
         unsignedActionCreation,
         TestData.payeeRaw.signatureParams,
       );
-      const newRequestId = MultiFormat.serialize(
-        Utils.crypto.normalizeKeccak256Hash(unsignedActionCreation),
-      );
+      const newRequestId = MultiFormat.serialize(normalizeKeccak256Hash(unsignedActionCreation));
 
-      const actionAccept: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionAccept: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.ACCEPT,
           parameters: {
@@ -1999,7 +1991,7 @@ describe('index', () => {
         TestData.payerRaw.signatureParams,
       );
 
-      const rxReduce: RequestLogicTypes.IAction = Utils.signature.sign(
+      const rxReduce: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.REDUCE_EXPECTED_AMOUNT,
           parameters: {
@@ -2025,15 +2017,13 @@ describe('index', () => {
         },
         version: CURRENT_VERSION,
       };
-      const actionCreate2: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate2: RequestLogicTypes.IAction = sign(
         unsignedActionCreation2,
         TestData.payeeRaw.signatureParams,
       );
-      const newRequestId2 = MultiFormat.serialize(
-        Utils.crypto.normalizeKeccak256Hash(unsignedActionCreation2),
-      );
+      const newRequestId2 = MultiFormat.serialize(normalizeKeccak256Hash(unsignedActionCreation2));
 
-      const actionCancel2: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCancel2: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CANCEL,
           parameters: {
@@ -2058,13 +2048,11 @@ describe('index', () => {
         },
         version: CURRENT_VERSION,
       };
-      const actionCreate3: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate3: RequestLogicTypes.IAction = sign(
         unsignedActionCreation3,
         TestData.payeeRaw.signatureParams,
       );
-      const newRequestId3 = MultiFormat.serialize(
-        Utils.crypto.normalizeKeccak256Hash(unsignedActionCreation3),
-      );
+      const newRequestId3 = MultiFormat.serialize(normalizeKeccak256Hash(unsignedActionCreation3));
 
       const meta = {
         dataAccessMeta: { [requestId]: [], [newRequestId2]: [], [newRequestId3]: [] },
@@ -2155,7 +2143,7 @@ describe('index', () => {
     });
 
     it('should ignore the transaction none parsable and the rejected action', async () => {
-      const actionCreate: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CREATE,
           parameters: {
@@ -2173,7 +2161,7 @@ describe('index', () => {
         TestData.payeeRaw.signatureParams,
       );
 
-      const acceptNotValid: RequestLogicTypes.IAction = Utils.signature.sign(
+      const acceptNotValid: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.ACCEPT,
           parameters: {
@@ -2250,15 +2238,13 @@ describe('index', () => {
         },
         version: CURRENT_VERSION,
       };
-      const actionCreate: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate: RequestLogicTypes.IAction = sign(
         unsignedActionCreation,
         TestData.payeeRaw.signatureParams,
       );
-      const newRequestId = MultiFormat.serialize(
-        Utils.crypto.normalizeKeccak256Hash(unsignedActionCreation),
-      );
+      const newRequestId = MultiFormat.serialize(normalizeKeccak256Hash(unsignedActionCreation));
 
-      const actionAccept: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionAccept: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.ACCEPT,
           parameters: {
@@ -2269,7 +2255,7 @@ describe('index', () => {
         TestData.payerRaw.signatureParams,
       );
 
-      const rxReduce: RequestLogicTypes.IAction = Utils.signature.sign(
+      const rxReduce: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.REDUCE_EXPECTED_AMOUNT,
           parameters: {
@@ -2295,15 +2281,13 @@ describe('index', () => {
         },
         version: CURRENT_VERSION,
       };
-      const actionCreate2: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate2: RequestLogicTypes.IAction = sign(
         unsignedActionCreation2,
         TestData.payeeRaw.signatureParams,
       );
-      const newRequestId2 = MultiFormat.serialize(
-        Utils.crypto.normalizeKeccak256Hash(unsignedActionCreation2),
-      );
+      const newRequestId2 = MultiFormat.serialize(normalizeKeccak256Hash(unsignedActionCreation2));
 
-      const actionCancel2: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCancel2: RequestLogicTypes.IAction = sign(
         {
           name: RequestLogicTypes.ACTION_NAME.CANCEL,
           parameters: {
@@ -2328,13 +2312,11 @@ describe('index', () => {
         },
         version: CURRENT_VERSION,
       };
-      const actionCreate3: RequestLogicTypes.IAction = Utils.signature.sign(
+      const actionCreate3: RequestLogicTypes.IAction = sign(
         unsignedActionCreation3,
         TestData.payeeRaw.signatureParams,
       );
-      const newRequestId3 = MultiFormat.serialize(
-        Utils.crypto.normalizeKeccak256Hash(unsignedActionCreation3),
-      );
+      const newRequestId3 = MultiFormat.serialize(normalizeKeccak256Hash(unsignedActionCreation3));
 
       const meta = {
         dataAccessMeta: { [requestId]: [], [newRequestId2]: [], [newRequestId3]: [] },
diff --git a/packages/request-logic/test/unit/action.test.ts b/packages/request-logic/test/unit/action.test.ts
index 4a53d3a0a7..a308739dbf 100644
--- a/packages/request-logic/test/unit/action.test.ts
+++ b/packages/request-logic/test/unit/action.test.ts
@@ -5,7 +5,7 @@ import {
   SignatureProviderTypes,
   SignatureTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy, normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 import Action from '../../src/action';
 import CreateAction from '../../src/actions/create';
@@ -46,7 +46,7 @@ const fakeSignatureProvider: SignatureProviderTypes.ISignatureProvider = {
 describe('Action', () => {
   it('can getRequestId() of current version', () => {
     const reqId = Action.getRequestId(signedAction);
-    expect(reqId).toBe(MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(signedAction)));
+    expect(reqId).toBe(MultiFormat.serialize(normalizeKeccak256Hash(signedAction)));
   });
   it('can getRequestId() of version before or equal 2.0.0', () => {
     const randomUnsignedAction200 = {
@@ -72,9 +72,7 @@ describe('Action', () => {
     };
 
     const reqId = Action.getRequestId(signedAction200);
-    expect(reqId).toBe(
-      MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(randomUnsignedAction200)),
-    );
+    expect(reqId).toBe(MultiFormat.serialize(normalizeKeccak256Hash(randomUnsignedAction200)));
   });
 
   it('can getRoleInAction()', () => {
@@ -110,7 +108,7 @@ describe('Action', () => {
   it('can isActionVersionSupported()', () => {
     expect(Action.isActionVersionSupported(signedAction)).toBeTruthy();
 
-    const wrongVersionAction = Utils.deepCopy(signedAction);
+    const wrongVersionAction = deepCopy(signedAction);
     wrongVersionAction.data.version = '10.0.0';
 
     expect(Action.isActionVersionSupported(wrongVersionAction)).toBeFalsy();
diff --git a/packages/request-logic/test/unit/actions/accept.test.ts b/packages/request-logic/test/unit/actions/accept.test.ts
index b006bdbdc1..2f7b3d1726 100644
--- a/packages/request-logic/test/unit/actions/accept.test.ts
+++ b/packages/request-logic/test/unit/actions/accept.test.ts
@@ -1,5 +1,5 @@
 import { IdentityTypes, RequestLogicTypes, SignatureTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import AcceptAction from '../../../src/actions/accept';
 
 import Version from '../../../src/version';
@@ -57,7 +57,7 @@ describe('actions/accept', () => {
       const request = AcceptAction.applyActionToRequest(
         actionAccept,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -118,7 +118,7 @@ describe('actions/accept', () => {
         AcceptAction.applyActionToRequest(
           actionAccept,
           1,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         );
       }).toThrowError('Signer must be the payer');
     });
@@ -133,7 +133,7 @@ describe('actions/accept', () => {
         AcceptAction.applyActionToRequest(
           actionAccept,
           1,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('Signer must be the payer');
     });
@@ -152,11 +152,7 @@ describe('actions/accept', () => {
         },
       };
       expect(() =>
-        AcceptAction.applyActionToRequest(
-          action,
-          1,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
-        ),
+        AcceptAction.applyActionToRequest(action, 1, deepCopy(TestData.requestCreatedNoExtension)),
       ).toThrowError('requestId must be given');
     });
 
@@ -234,11 +230,7 @@ describe('actions/accept', () => {
       };
 
       expect(() =>
-        AcceptAction.applyActionToRequest(
-          action,
-          1,
-          Utils.deepCopy(TestData.requestCanceledNoExtension),
-        ),
+        AcceptAction.applyActionToRequest(action, 1, deepCopy(TestData.requestCanceledNoExtension)),
       ).toThrowError('the request state must be created');
     });
 
@@ -259,11 +251,7 @@ describe('actions/accept', () => {
       };
 
       expect(() =>
-        AcceptAction.applyActionToRequest(
-          action,
-          2,
-          Utils.deepCopy(TestData.requestCanceledNoExtension),
-        ),
+        AcceptAction.applyActionToRequest(action, 2, deepCopy(TestData.requestCanceledNoExtension)),
       ).toThrowError('the request state must be created');
     });
 
@@ -281,7 +269,7 @@ describe('actions/accept', () => {
       const request = AcceptAction.applyActionToRequest(
         actionAccept,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -344,7 +332,7 @@ describe('actions/accept', () => {
       const request = AcceptAction.applyActionToRequest(
         actionAccept,
         2,
-        Utils.deepCopy(TestData.requestCreatedWithExtensions),
+        deepCopy(TestData.requestCreatedWithExtensions),
       );
 
       // 'requestId is wrong'
@@ -411,7 +399,7 @@ describe('actions/accept', () => {
       const request = AcceptAction.applyActionToRequest(
         actionAccept,
         2,
-        Utils.deepCopy(TestData.requestCreatedWithExtensions),
+        deepCopy(TestData.requestCreatedWithExtensions),
       );
 
       // 'requestId is wrong'
diff --git a/packages/request-logic/test/unit/actions/addExtensionsData.test.ts b/packages/request-logic/test/unit/actions/addExtensionsData.test.ts
index 840fc793dc..95b769f839 100644
--- a/packages/request-logic/test/unit/actions/addExtensionsData.test.ts
+++ b/packages/request-logic/test/unit/actions/addExtensionsData.test.ts
@@ -1,5 +1,5 @@
 import { IdentityTypes, RequestLogicTypes, SignatureTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import AddExtensionsDataAction from '../../../src/actions/addExtensionsData';
 
 import Version from '../../../src/version';
@@ -75,7 +75,7 @@ describe('actions/addExtensionsData', () => {
       const request = AddExtensionsDataAction.applyActionToRequest(
         actionAddExtensionsData,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -141,7 +141,7 @@ describe('actions/addExtensionsData', () => {
         AddExtensionsDataAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('requestId must be given');
     });
@@ -163,7 +163,7 @@ describe('actions/addExtensionsData', () => {
         AddExtensionsDataAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('extensionsData must be given');
     });
@@ -185,7 +185,7 @@ describe('actions/addExtensionsData', () => {
         AddExtensionsDataAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('extensionsData must be given');
     });
@@ -204,7 +204,7 @@ describe('actions/addExtensionsData', () => {
       const request = AddExtensionsDataAction.applyActionToRequest(
         actionAddExtensionsData,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -267,7 +267,7 @@ describe('actions/addExtensionsData', () => {
       const request = AddExtensionsDataAction.applyActionToRequest(
         actionAddExtensionsData,
         2,
-        Utils.deepCopy(TestData.requestCreatedWithExtensions),
+        deepCopy(TestData.requestCreatedWithExtensions),
       );
 
       // 'requestId is wrong'
diff --git a/packages/request-logic/test/unit/actions/cancel.test.ts b/packages/request-logic/test/unit/actions/cancel.test.ts
index 3608378fa8..580be2f782 100644
--- a/packages/request-logic/test/unit/actions/cancel.test.ts
+++ b/packages/request-logic/test/unit/actions/cancel.test.ts
@@ -1,5 +1,5 @@
 import { IdentityTypes, RequestLogicTypes, SignatureTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import CancelAction from '../../../src/actions/cancel';
 
 import Version from '../../../src/version';
@@ -60,7 +60,7 @@ describe('actions/cancel', () => {
       const request = CancelAction.applyActionToRequest(
         actionCancel,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -122,7 +122,7 @@ describe('actions/cancel', () => {
         CancelAction.applyActionToRequest(
           actionCancel,
           2,
-          Utils.deepCopy(TestData.requestAcceptedNoExtension),
+          deepCopy(TestData.requestAcceptedNoExtension),
         ),
       ).toThrowError('A payer cancel need to be done on a request with the state created');
     });
@@ -139,7 +139,7 @@ describe('actions/cancel', () => {
         CancelAction.applyActionToRequest(
           actionCancel,
           2,
-          Utils.deepCopy(TestData.requestCanceledNoExtension),
+          deepCopy(TestData.requestCanceledNoExtension),
         ),
       ).toThrowError('A payer cancel need to be done on a request with the state created');
     });
@@ -155,7 +155,7 @@ describe('actions/cancel', () => {
       const request = CancelAction.applyActionToRequest(
         actionCancel,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -215,7 +215,7 @@ describe('actions/cancel', () => {
       const request = CancelAction.applyActionToRequest(
         actionCancel,
         2,
-        Utils.deepCopy(TestData.requestAcceptedNoExtension),
+        deepCopy(TestData.requestAcceptedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -276,7 +276,7 @@ describe('actions/cancel', () => {
         CancelAction.applyActionToRequest(
           actionCancel,
           2,
-          Utils.deepCopy(TestData.requestCanceledNoExtension),
+          deepCopy(TestData.requestCanceledNoExtension),
         ),
       ).toThrowError('Cannot cancel an already canceled request');
     });
@@ -294,7 +294,7 @@ describe('actions/cancel', () => {
         CancelAction.applyActionToRequest(
           actionCancel,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('Signer must be the payer or the payee');
     });
@@ -314,11 +314,7 @@ describe('actions/cancel', () => {
       };
 
       expect(() =>
-        CancelAction.applyActionToRequest(
-          action,
-          2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
-        ),
+        CancelAction.applyActionToRequest(action, 2, deepCopy(TestData.requestCreatedNoExtension)),
       ).toThrowError('requestId must be given');
     });
     it('cannot cancel by payer if no payer in state', () => {
@@ -447,7 +443,7 @@ describe('actions/cancel', () => {
       const request = CancelAction.applyActionToRequest(
         actionCancel,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -510,7 +506,7 @@ describe('actions/cancel', () => {
       const request = CancelAction.applyActionToRequest(
         actionCancel,
         2,
-        Utils.deepCopy(TestData.requestCreatedWithExtensions),
+        deepCopy(TestData.requestCreatedWithExtensions),
       );
 
       // 'requestId is wrong'
@@ -570,7 +566,7 @@ describe('actions/cancel', () => {
       const request = CancelAction.applyActionToRequest(
         actionCancel,
         2,
-        Utils.deepCopy(TestData.requestCreatedWithExtensions),
+        deepCopy(TestData.requestCreatedWithExtensions),
       );
 
       // 'requestId is wrong'
diff --git a/packages/request-logic/test/unit/actions/create.test.ts b/packages/request-logic/test/unit/actions/create.test.ts
index 781a9b43ab..bfcd3fcdf4 100644
--- a/packages/request-logic/test/unit/actions/create.test.ts
+++ b/packages/request-logic/test/unit/actions/create.test.ts
@@ -1,7 +1,7 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { IdentityTypes, RequestLogicTypes } from '@requestnetwork/types';
 
-import Utils from '@requestnetwork/utils';
+import { normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 import CreateAction from '../../../src/actions/create';
 
@@ -647,9 +647,7 @@ describe('CreateAction', () => {
       const request = CreateAction.createRequest(actionCreation, 2);
 
       // 'requestId is wrong'
-      expect(request.requestId).toBe(
-        MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(actionCreation)),
-      );
+      expect(request.requestId).toBe(MultiFormat.serialize(normalizeKeccak256Hash(actionCreation)));
       // 'currency is wrong'
       expect(request.currency).toEqual({
         type: RequestLogicTypes.CURRENCY.ETH,
@@ -719,9 +717,7 @@ describe('CreateAction', () => {
       const request = CreateAction.createRequest(actionCreation, 2);
 
       // 'requestId is wrong'
-      expect(request.requestId).toBe(
-        MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(actionCreation)),
-      );
+      expect(request.requestId).toBe(MultiFormat.serialize(normalizeKeccak256Hash(actionCreation)));
       // 'currency is wrong'
       expect(request.currency).toEqual({
         type: RequestLogicTypes.CURRENCY.ETH,
@@ -791,9 +787,7 @@ describe('CreateAction', () => {
       const request = CreateAction.createRequest(actionCreation, 2);
 
       // 'requestId is wrong'
-      expect(request.requestId).toBe(
-        MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(actionCreation)),
-      );
+      expect(request.requestId).toBe(MultiFormat.serialize(normalizeKeccak256Hash(actionCreation)));
       // 'currency is wrong'
       expect(request.currency).toEqual({
         type: RequestLogicTypes.CURRENCY.ETH,
@@ -862,9 +856,7 @@ describe('CreateAction', () => {
       const request = CreateAction.createRequest(actionCreation, 2);
 
       // 'requestId is wrong'
-      expect(request.requestId).toBe(
-        MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(actionCreation)),
-      );
+      expect(request.requestId).toBe(MultiFormat.serialize(normalizeKeccak256Hash(actionCreation)));
       // 'currency is wrong'
       expect(request.currency).toEqual({
         type: RequestLogicTypes.CURRENCY.ETH,
@@ -1027,9 +1019,7 @@ describe('CreateAction', () => {
       const request = CreateAction.createRequest(actionCreation, 2);
 
       // 'requestId is wrong'
-      expect(request.requestId).toBe(
-        MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(actionCreation)),
-      );
+      expect(request.requestId).toBe(MultiFormat.serialize(normalizeKeccak256Hash(actionCreation)));
       // 'currency is wrong'
       expect(request.currency).toEqual({
         type: RequestLogicTypes.CURRENCY.ETH,
diff --git a/packages/request-logic/test/unit/actions/increaseExpectedAmount.test.ts b/packages/request-logic/test/unit/actions/increaseExpectedAmount.test.ts
index 6cee4bfd6e..f9166d9ab9 100644
--- a/packages/request-logic/test/unit/actions/increaseExpectedAmount.test.ts
+++ b/packages/request-logic/test/unit/actions/increaseExpectedAmount.test.ts
@@ -1,5 +1,5 @@
 import { IdentityTypes, RequestLogicTypes, SignatureTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import IncreaseExpectedAmountAction from '../../../src/actions/increaseExpectedAmount';
 
 import Version from '../../../src/version';
@@ -118,7 +118,7 @@ describe('actions/increaseExpectedAmount', () => {
       const request = IncreaseExpectedAmountAction.applyActionToRequest(
         actionIncreaseAmount,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -181,7 +181,7 @@ describe('actions/increaseExpectedAmount', () => {
         IncreaseExpectedAmountAction.applyActionToRequest(
           actionIncreaseAmount,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('signer must be the payer');
     });
@@ -199,7 +199,7 @@ describe('actions/increaseExpectedAmount', () => {
         IncreaseExpectedAmountAction.applyActionToRequest(
           actionIncreaseAmount,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('signer must be the payer');
     });
@@ -224,7 +224,7 @@ describe('actions/increaseExpectedAmount', () => {
         IncreaseExpectedAmountAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('requestId must be given');
     });
@@ -249,7 +249,7 @@ describe('actions/increaseExpectedAmount', () => {
         IncreaseExpectedAmountAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('deltaAmount must be given');
     });
@@ -325,7 +325,7 @@ describe('actions/increaseExpectedAmount', () => {
         IncreaseExpectedAmountAction.applyActionToRequest(
           actionIncreaseAmount,
           2,
-          Utils.deepCopy(TestData.requestCanceledNoExtension),
+          deepCopy(TestData.requestCanceledNoExtension),
         ),
       ).toThrowError('the request must not be canceled');
     });
@@ -343,7 +343,7 @@ describe('actions/increaseExpectedAmount', () => {
       const request = IncreaseExpectedAmountAction.applyActionToRequest(
         actionIncreaseAmount,
         2,
-        Utils.deepCopy(TestData.requestAcceptedNoExtension),
+        deepCopy(TestData.requestAcceptedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -407,7 +407,7 @@ describe('actions/increaseExpectedAmount', () => {
       const request = IncreaseExpectedAmountAction.applyActionToRequest(
         actionIncreaseAmount,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -471,7 +471,7 @@ describe('actions/increaseExpectedAmount', () => {
       const request = IncreaseExpectedAmountAction.applyActionToRequest(
         actionIncreaseAmount,
         2,
-        Utils.deepCopy(TestData.requestCreatedWithExtensions),
+        deepCopy(TestData.requestCreatedWithExtensions),
       );
 
       // 'requestId is wrong'
@@ -532,7 +532,7 @@ describe('actions/increaseExpectedAmount', () => {
       const request = IncreaseExpectedAmountAction.applyActionToRequest(
         actionIncreaseAmount,
         2,
-        Utils.deepCopy(TestData.requestCreatedWithExtensions),
+        deepCopy(TestData.requestCreatedWithExtensions),
       );
 
       // 'requestId is wrong'
@@ -602,7 +602,7 @@ describe('actions/increaseExpectedAmount', () => {
         IncreaseExpectedAmountAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('deltaAmount must be a string representing a positive integer');
     });
@@ -629,7 +629,7 @@ describe('actions/increaseExpectedAmount', () => {
         IncreaseExpectedAmountAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('deltaAmount must be a string representing a positive integer');
     });
@@ -655,7 +655,7 @@ describe('actions/increaseExpectedAmount', () => {
         IncreaseExpectedAmountAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         ),
       ).toThrowError('deltaAmount must be a string representing a positive integer');
     });
diff --git a/packages/request-logic/test/unit/actions/reduceExpectedAmount.test.ts b/packages/request-logic/test/unit/actions/reduceExpectedAmount.test.ts
index c03c4c3451..190e3aeb5c 100644
--- a/packages/request-logic/test/unit/actions/reduceExpectedAmount.test.ts
+++ b/packages/request-logic/test/unit/actions/reduceExpectedAmount.test.ts
@@ -1,5 +1,5 @@
 import { IdentityTypes, RequestLogicTypes, SignatureTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import ReduceExpectedAmountAction from '../../../src/actions/reduceExpectedAmount';
 
 import Version from '../../../src/version';
@@ -119,7 +119,7 @@ describe('actions/reduceExpectedAmount', () => {
       const request = ReduceExpectedAmountAction.applyActionToRequest(
         actionReduceAmount,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -182,7 +182,7 @@ describe('actions/reduceExpectedAmount', () => {
         ReduceExpectedAmountAction.applyActionToRequest(
           actionReduceAmount,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         );
       }).toThrowError('signer must be the payee');
     });
@@ -200,7 +200,7 @@ describe('actions/reduceExpectedAmount', () => {
         ReduceExpectedAmountAction.applyActionToRequest(
           actionReduceAmount,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         );
       }).toThrowError('signer must be the payee');
     });
@@ -224,7 +224,7 @@ describe('actions/reduceExpectedAmount', () => {
         ReduceExpectedAmountAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         );
       }).toThrowError('requestId must be given');
     });
@@ -248,7 +248,7 @@ describe('actions/reduceExpectedAmount', () => {
         ReduceExpectedAmountAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         );
       }).toThrowError('deltaAmount must be given');
     });
@@ -324,7 +324,7 @@ describe('actions/reduceExpectedAmount', () => {
         ReduceExpectedAmountAction.applyActionToRequest(
           actionReduceAmount,
           2,
-          Utils.deepCopy(TestData.requestCanceledNoExtension),
+          deepCopy(TestData.requestCanceledNoExtension),
         );
       }).toThrowError('the request must not be canceled');
     });
@@ -342,7 +342,7 @@ describe('actions/reduceExpectedAmount', () => {
       const request = ReduceExpectedAmountAction.applyActionToRequest(
         actionReduceAmount,
         2,
-        Utils.deepCopy(TestData.requestAcceptedNoExtension),
+        deepCopy(TestData.requestAcceptedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -406,7 +406,7 @@ describe('actions/reduceExpectedAmount', () => {
       const request = ReduceExpectedAmountAction.applyActionToRequest(
         actionReduceAmount,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -470,7 +470,7 @@ describe('actions/reduceExpectedAmount', () => {
       const request = ReduceExpectedAmountAction.applyActionToRequest(
         actionReduceAmount,
         2,
-        Utils.deepCopy(TestData.requestCreatedWithExtensions),
+        deepCopy(TestData.requestCreatedWithExtensions),
       );
 
       // 'requestId is wrong'
@@ -531,7 +531,7 @@ describe('actions/reduceExpectedAmount', () => {
       const request = ReduceExpectedAmountAction.applyActionToRequest(
         actionReduceAmount,
         2,
-        Utils.deepCopy(TestData.requestCreatedWithExtensions),
+        deepCopy(TestData.requestCreatedWithExtensions),
       );
 
       // 'requestId is wrong'
@@ -601,7 +601,7 @@ describe('actions/reduceExpectedAmount', () => {
         ReduceExpectedAmountAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         );
       }).toThrowError('deltaAmount must be a string representing a positive integer');
     });
@@ -627,7 +627,7 @@ describe('actions/reduceExpectedAmount', () => {
         ReduceExpectedAmountAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         );
       }).toThrowError('deltaAmount must be a string representing a positive integer');
     });
@@ -652,7 +652,7 @@ describe('actions/reduceExpectedAmount', () => {
         ReduceExpectedAmountAction.applyActionToRequest(
           action,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         );
       }).toThrowError('deltaAmount must be a string representing a positive integer');
     });
@@ -670,7 +670,7 @@ describe('actions/reduceExpectedAmount', () => {
       const request = ReduceExpectedAmountAction.applyActionToRequest(
         actionReduceAmount,
         2,
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
       );
 
       // 'requestId is wrong'
@@ -732,7 +732,7 @@ describe('actions/reduceExpectedAmount', () => {
         ReduceExpectedAmountAction.applyActionToRequest(
           actionReduceAmount,
           2,
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
         );
       }).toThrowError('result of reduce is not valid');
     });
diff --git a/packages/request-logic/test/unit/requestLogicCore.test.ts b/packages/request-logic/test/unit/requestLogicCore.test.ts
index 4c7b610215..bb85cfcf68 100644
--- a/packages/request-logic/test/unit/requestLogicCore.test.ts
+++ b/packages/request-logic/test/unit/requestLogicCore.test.ts
@@ -6,7 +6,7 @@ import {
   RequestLogicTypes,
   SignatureTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { deepCopy, normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 import Version from '../../src/version';
 const CURRENT_VERSION = Version.currentVersion;
@@ -51,7 +51,7 @@ describe('requestLogicCore', () => {
 
       expect(() =>
         RequestLogicCore.applyActionToRequest(
-          Utils.deepCopy(TestData.requestCreatedNoExtension),
+          deepCopy(TestData.requestCreatedNoExtension),
           action,
           2,
           fakeAdvancedLogic,
@@ -392,9 +392,7 @@ describe('requestLogicCore', () => {
       );
 
       // 'requestId is wrong'
-      expect(request.requestId).toBe(
-        MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(actionCreation)),
-      );
+      expect(request.requestId).toBe(MultiFormat.serialize(normalizeKeccak256Hash(actionCreation)));
       // 'currency is wrong'
       expect(request.currency).toEqual({
         type: RequestLogicTypes.CURRENCY.ETH,
@@ -431,7 +429,7 @@ describe('requestLogicCore', () => {
       );
 
       const request = RequestLogicCore.applyActionToRequest(
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
         actionAccept,
         2,
         fakeAdvancedLogic,
@@ -485,7 +483,7 @@ describe('requestLogicCore', () => {
         TestData.fakeSignatureProvider,
       );
       const request = RequestLogicCore.applyActionToRequest(
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
         actionCancel,
         2,
         fakeAdvancedLogic,
@@ -543,7 +541,7 @@ describe('requestLogicCore', () => {
       );
 
       const request = RequestLogicCore.applyActionToRequest(
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
         actionIncreaseAmount,
         2,
         fakeAdvancedLogic,
@@ -601,7 +599,7 @@ describe('requestLogicCore', () => {
       );
 
       const request = RequestLogicCore.applyActionToRequest(
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
         actionReduceAmount,
         2,
         fakeAdvancedLogic,
@@ -654,7 +652,7 @@ describe('requestLogicCore', () => {
       );
 
       const request = RequestLogicCore.applyActionToRequest(
-        Utils.deepCopy(TestData.requestCreatedNoExtension),
+        deepCopy(TestData.requestCreatedNoExtension),
         actionAddExtensionsData,
         2,
         fakeAdvancedLogic,
diff --git a/packages/request-logic/test/unit/utils/test-data-generator.ts b/packages/request-logic/test/unit/utils/test-data-generator.ts
index 3e8f190e0f..25a107eb20 100644
--- a/packages/request-logic/test/unit/utils/test-data-generator.ts
+++ b/packages/request-logic/test/unit/utils/test-data-generator.ts
@@ -6,7 +6,7 @@ import {
   SignatureTypes,
 } from '@requestnetwork/types';
 
-import Utils from '@requestnetwork/utils';
+import { sign } from '@requestnetwork/utils';
 import Version from '../../../src/version';
 const CURRENT_VERSION = Version.currentVersion;
 
@@ -280,9 +280,9 @@ export const fakeIdentity = {
 export const fakeSignatureProvider: SignatureProviderTypes.ISignatureProvider = {
   sign: (data: any, identity: IdentityTypes.IIdentity): any =>
     ({
-      [payeeRaw.address as string]: Utils.signature.sign(data, payeeRaw.signatureParams),
-      [payerRaw.address as string]: Utils.signature.sign(data, payerRaw.signatureParams),
-      [otherIdRaw.address as string]: Utils.signature.sign(data, otherIdRaw.signatureParams),
+      [payeeRaw.address as string]: sign(data, payeeRaw.signatureParams),
+      [payerRaw.address as string]: sign(data, payerRaw.signatureParams),
+      [otherIdRaw.address as string]: sign(data, otherIdRaw.signatureParams),
     }[identity.value]),
   supportedIdentityTypes: [IdentityTypes.TYPE.ETHEREUM_ADDRESS],
   supportedMethods: [SignatureTypes.METHOD.ECDSA],
diff --git a/packages/request-node/src/logger.ts b/packages/request-node/src/logger.ts
index f9e5650745..fb2980810f 100644
--- a/packages/request-node/src/logger.ts
+++ b/packages/request-node/src/logger.ts
@@ -1,5 +1,5 @@
 import { LogTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { SimpleLogger } from '@requestnetwork/utils';
 import chalk from 'chalk';
 
 /** The different logging modes supported by this logger */
@@ -20,7 +20,7 @@ const levelColor = {
 /**
  * A logger for the Request Node that extends the `SimpleLogger`
  */
-export class Logger extends Utils.SimpleLogger {
+export class Logger extends SimpleLogger {
   // The class modeType
   private mode: modeType;
 
diff --git a/packages/request-node/src/request/persistTransaction.ts b/packages/request-node/src/request/persistTransaction.ts
index 9b190c369c..768e72244e 100644
--- a/packages/request-node/src/request/persistTransaction.ts
+++ b/packages/request-node/src/request/persistTransaction.ts
@@ -1,10 +1,10 @@
 import { LogTypes, MultiFormatTypes, DataAccessTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { Request, Response } from 'express';
 import { StatusCodes } from 'http-status-codes';
 import { getPersistTransactionTimeout } from '../config';
 
 import ConfirmedTransactionStore from './confirmedTransactionStore';
+import { normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 /**
  * Class to persist transactions though the data-access layer
@@ -52,7 +52,7 @@ export default class PersistTransactionHandler {
       return;
     }
     try {
-      const transactionHash: MultiFormatTypes.HashTypes.IHash = Utils.crypto.normalizeKeccak256Hash(
+      const transactionHash: MultiFormatTypes.HashTypes.IHash = normalizeKeccak256Hash(
         clientRequest.body.transactionData,
       );
 
diff --git a/packages/request-node/src/requestNode.ts b/packages/request-node/src/requestNode.ts
index 3ca028e001..5fcd451841 100644
--- a/packages/request-node/src/requestNode.ts
+++ b/packages/request-node/src/requestNode.ts
@@ -7,12 +7,12 @@ import { getInitializationStorageFilePath, getMnemonic } from './config';
 import { getEthereumStorage, getIpfsStorage } from './storageUtils';
 
 import { RequestNodeBase } from './requestNodeBase';
-import Utils from '@requestnetwork/utils';
+import { SimpleLogger } from '@requestnetwork/utils';
 
 export class RequestNode extends RequestNodeBase {
   constructor(logger?: LogTypes.ILogger) {
     const initializationStoragePath = getInitializationStorageFilePath();
-    logger = logger || new Utils.SimpleLogger();
+    logger = logger || new SimpleLogger();
 
     const store = initializationStoragePath
       ? new KeyvFile({
diff --git a/packages/request-node/src/requestNodeBase.ts b/packages/request-node/src/requestNodeBase.ts
index 12666e35f0..81c05c5be4 100644
--- a/packages/request-node/src/requestNodeBase.ts
+++ b/packages/request-node/src/requestNodeBase.ts
@@ -1,5 +1,5 @@
 import { DataAccessTypes, LogTypes, StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { SimpleLogger } from '@requestnetwork/utils';
 import cors from 'cors';
 import { Server } from 'http';
 import express, { NextFunction, Request, Response } from 'express';
@@ -61,7 +61,7 @@ export class RequestNodeBase {
   ) {
     this.initialized = false;
 
-    this.logger = logger || new Utils.SimpleLogger();
+    this.logger = logger || new SimpleLogger();
     this.dataAccess = dataAccess;
 
     this.confirmedTransactionStore = new ConfirmedTransactionStore(store);
diff --git a/packages/request-node/src/thegraph-node.ts b/packages/request-node/src/thegraph-node.ts
index 81bbddcf5a..757a603329 100644
--- a/packages/request-node/src/thegraph-node.ts
+++ b/packages/request-node/src/thegraph-node.ts
@@ -6,9 +6,9 @@ import { LogTypes } from '@requestnetwork/types';
 import { RequestNodeBase } from './requestNodeBase';
 import * as config from './config';
 import { getIpfsStorage } from './storageUtils';
-import Utils from '@requestnetwork/utils';
 import { TheGraphDataAccess } from '@requestnetwork/thegraph-data-access';
 import { EthereumStorageEthers } from '@requestnetwork/ethereum-storage';
+import { SimpleLogger } from '@requestnetwork/utils';
 
 const getNetworkFromId = (networkId: number) => {
   const customNames: Record<number, string> = {
@@ -20,7 +20,7 @@ const getNetworkFromId = (networkId: number) => {
 export class TheGraphRequestNode extends RequestNodeBase {
   constructor(url: string, logger?: LogTypes.ILogger) {
     const initializationStoragePath = config.getInitializationStorageFilePath();
-    logger = logger || new Utils.SimpleLogger();
+    logger = logger || new SimpleLogger();
 
     const store = initializationStoragePath
       ? new KeyvFile({
diff --git a/packages/request-node/test/getConfirmedTransaction.test.ts b/packages/request-node/test/getConfirmedTransaction.test.ts
index d5a7db0370..4cd49ecd5b 100644
--- a/packages/request-node/test/getConfirmedTransaction.test.ts
+++ b/packages/request-node/test/getConfirmedTransaction.test.ts
@@ -1,4 +1,4 @@
-import Utils from '@requestnetwork/utils';
+import { normalizeKeccak256Hash } from '@requestnetwork/utils';
 import { StatusCodes } from 'http-status-codes';
 import request from 'supertest';
 import { RequestNode } from '../src/requestNode';
@@ -7,7 +7,7 @@ import { RequestNodeBase } from '../src/requestNodeBase';
 const channelId = '010aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa';
 
 const transactionData = { data: 'this is sample data for a transaction' };
-const transactionHash = Utils.crypto.normalizeKeccak256Hash(transactionData).value;
+const transactionHash = normalizeKeccak256Hash(transactionData).value;
 
 let requestNodeInstance: RequestNodeBase;
 let server: any;
diff --git a/packages/smart-contracts/hardhat.config.ts b/packages/smart-contracts/hardhat.config.ts
index e02716a455..6d304a7130 100644
--- a/packages/smart-contracts/hardhat.config.ts
+++ b/packages/smart-contracts/hardhat.config.ts
@@ -13,8 +13,8 @@ import { HardhatRuntimeEnvironmentExtended } from './scripts-create2/types';
 import { computeCreate2DeploymentAddressesFromList } from './scripts-create2/compute-one-address';
 import { VerifyCreate2FromList } from './scripts-create2/verify';
 import { deployWithCreate2FromList } from './scripts-create2/deploy';
-import utils from '@requestnetwork/utils';
 import { NUMBER_ERRORS } from './scripts/utils';
+import { networkRpcs } from '@requestnetwork/utils';
 
 config();
 
@@ -45,8 +45,7 @@ const requestDeployer = process.env.REQUEST_DEPLOYER_LIVE
   ? LIVE_DEPLOYER_ADDRESS
   : LOCAL_DEPLOYER_ADDRESS;
 
-const url = (network: string): string =>
-  process.env.WEB3_PROVIDER_URL || utils.networkRpcs[network];
+const url = (network: string): string => process.env.WEB3_PROVIDER_URL || networkRpcs[network];
 
 export default {
   solidity: '0.8.9',
diff --git a/packages/smart-contracts/scripts-create2/check-deployer.ts b/packages/smart-contracts/scripts-create2/check-deployer.ts
index 637c4ce360..e1c3c689a1 100644
--- a/packages/smart-contracts/scripts-create2/check-deployer.ts
+++ b/packages/smart-contracts/scripts-create2/check-deployer.ts
@@ -1,5 +1,5 @@
-import utils from '@requestnetwork/utils';
 import { HardhatRuntimeEnvironmentExtended } from './types';
+import { getCeloProvider, getDefaultProvider } from '@requestnetwork/utils';
 
 export const checkCreate2Deployer = async (
   hre: HardhatRuntimeEnvironmentExtended,
@@ -14,9 +14,9 @@ export const checkCreate2Deployer = async (
     hre.config.xdeploy.networks.map(async (network: string) => {
       let provider;
       if (network === 'celo') {
-        provider = utils.getCeloProvider();
+        provider = getCeloProvider();
       } else {
-        provider = utils.getDefaultProvider(network);
+        provider = getDefaultProvider(network);
       }
       const code = await provider.getCode(hre.config.xdeploy.deployerAddress);
 
diff --git a/packages/smart-contracts/scripts-create2/contract-setup/adminTasks.ts b/packages/smart-contracts/scripts-create2/contract-setup/adminTasks.ts
index f6445261eb..344126d209 100644
--- a/packages/smart-contracts/scripts-create2/contract-setup/adminTasks.ts
+++ b/packages/smart-contracts/scripts-create2/contract-setup/adminTasks.ts
@@ -2,9 +2,9 @@ import { chainlinkConversionPath } from '../../src/lib';
 import { uniswapV2RouterAddresses } from '../../scripts/utils';
 import * as artifacts from '../../src/lib';
 import { BigNumber, Overrides, Wallet } from 'ethers';
-import utils from '@requestnetwork/utils';
 import { HardhatRuntimeEnvironmentExtended } from '../types';
 import { parseUnits } from 'ethers/lib/utils';
+import { estimateGasFees, getCeloProvider, getDefaultProvider } from '@requestnetwork/utils';
 
 // Fees: 0.5%
 export const REQUEST_SWAP_FEES = 5;
@@ -243,15 +243,15 @@ export const getSignerAndGasFees = async (
 }> => {
   let provider;
   if (network === 'celo') {
-    provider = utils.getCeloProvider();
+    provider = getCeloProvider();
   } else {
-    provider = utils.getDefaultProvider(network);
+    provider = getDefaultProvider(network);
   }
   const signer = new hre.ethers.Wallet(hre.config.xdeploy.signer).connect(provider);
 
   let txOverrides;
   try {
-    txOverrides = await utils.estimateGasFees({ provider });
+    txOverrides = await estimateGasFees({ provider });
   } catch (err) {
     txOverrides = {};
   }
diff --git a/packages/smart-contracts/scripts-create2/xdeployer.ts b/packages/smart-contracts/scripts-create2/xdeployer.ts
index c8e8e00880..c9026faf4a 100644
--- a/packages/smart-contracts/scripts-create2/xdeployer.ts
+++ b/packages/smart-contracts/scripts-create2/xdeployer.ts
@@ -1,7 +1,7 @@
 import { HardhatRuntimeEnvironmentExtended, IDeploymentParams, IDeploymentResult } from './types';
-import utils from '@requestnetwork/utils';
 import { requestDeployer } from '../src/lib';
 import { Overrides } from 'ethers';
+import { estimateGasFees, getCeloProvider, getDefaultProvider } from '@requestnetwork/utils';
 
 const ZERO_ETH_INPUT = 0;
 
@@ -44,9 +44,9 @@ export const xdeploy = async (
     console.log(`... on ${network}`);
     let provider;
     if (network === 'celo') {
-      provider = utils.getCeloProvider();
+      provider = getCeloProvider();
     } else {
-      provider = utils.getDefaultProvider(network);
+      provider = getDefaultProvider(network);
     }
     const wallet = new hre.ethers.Wallet(hre.config.xdeploy.signer, provider);
     const signer = wallet.connect(provider);
@@ -74,7 +74,7 @@ export const xdeploy = async (
     let txOverrides: Overrides;
 
     try {
-      txOverrides = await utils.estimateGasFees({ provider });
+      txOverrides = await estimateGasFees({ provider });
       const gasLimit = hre.config.xdeploy.gasLimit;
       txOverrides.gasLimit = gasLimit;
     } catch (e) {
diff --git a/packages/smart-contracts/test/contracts/BatchConversionPayments.test.ts b/packages/smart-contracts/test/contracts/BatchConversionPayments.test.ts
index 5f12cc1315..6506ae36a0 100644
--- a/packages/smart-contracts/test/contracts/BatchConversionPayments.test.ts
+++ b/packages/smart-contracts/test/contracts/BatchConversionPayments.test.ts
@@ -17,7 +17,7 @@ import { CurrencyManager } from '@requestnetwork/currency';
 import { chainlinkConversionPath } from '../../src/lib';
 import { FAU_USD_RATE } from '../../scripts/test-deploy-batch-conversion-deployment';
 import { localERC20AlphaArtifact, secondLocalERC20AlphaArtifact } from './localArtifacts';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import { HttpNetworkConfig } from 'hardhat/types';
 import {
   DAI_USD_RATE,
@@ -754,28 +754,28 @@ describe('contract: BatchConversionPayments', async () => {
 
   describe('batchMultiERC20ConversionPayments errors', async () => {
     it('cannot transfer with invalid path', async () => {
-      const convRequest = Utils.deepCopy(fauConvRequest);
+      const convRequest = deepCopy(fauConvRequest);
       convRequest.path = [EUR_hash, ETH_hash, DAI_address];
       await expect(
         batchConversionProxy.batchMultiERC20ConversionPayments([convRequest], [], feeAddress),
       ).to.be.revertedWith('revert No aggregator found');
     });
     it('cannot transfer if max to spend too low', async () => {
-      const convRequest = Utils.deepCopy(fauConvRequest);
+      const convRequest = deepCopy(fauConvRequest);
       convRequest.maxToSpend = '1000000'; // not enough
       await expect(
         batchConversionProxy.batchMultiERC20ConversionPayments([convRequest], [], feeAddress),
       ).to.be.revertedWith('Amount to pay is over the user limit');
     });
     it('cannot transfer if rate is too old', async () => {
-      const convRequest = Utils.deepCopy(fauConvRequest);
+      const convRequest = deepCopy(fauConvRequest);
       convRequest.maxRateTimespan = '10';
       await expect(
         batchConversionProxy.batchMultiERC20ConversionPayments([convRequest], [], feeAddress),
       ).to.be.revertedWith('aggregator rate is outdated');
     });
     it('Not enough allowance', async () => {
-      const convRequest = Utils.deepCopy(fauConvRequest);
+      const convRequest = deepCopy(fauConvRequest);
       // reduce fromSigner± allowance
       await fauERC20.approve(
         batchConversionProxy.address,
@@ -789,7 +789,7 @@ describe('contract: BatchConversionPayments', async () => {
       ).to.be.revertedWith('Insufficient allowance for batch to pay');
     });
     it('Not enough funds even if partially enough funds', async () => {
-      const convRequest = Utils.deepCopy(fauConvRequest);
+      const convRequest = deepCopy(fauConvRequest);
       // fromSigner transfer enough token to pay just 1 invoice to signer4
       await fauERC20
         .connect(fromSigner)
@@ -846,7 +846,7 @@ describe('contract: BatchConversionPayments', async () => {
       const initialToETHBalance = await provider.getBalance(to);
       const initialFeeETHBalance = await provider.getBalance(feeAddress);
       const initialFromETHBalance = await provider.getBalance(await fromSigner.getAddress());
-      const EurEthConvRequest = Utils.deepCopy(ethConvRequest);
+      const EurEthConvRequest = deepCopy(ethConvRequest);
       EurEthConvRequest.path = [EUR_hash, USD_hash, ETH_hash];
 
       tx = await batchConversionProxy.batchNativeConversionPayments(
@@ -875,7 +875,7 @@ describe('contract: BatchConversionPayments', async () => {
 
   describe('batchNativeConversionPayments errors', () => {
     it('cannot transfer with invalid path', async () => {
-      const wrongConvRequest = Utils.deepCopy(ethConvRequest);
+      const wrongConvRequest = deepCopy(ethConvRequest);
       wrongConvRequest.path = [USD_hash, EUR_hash, ETH_hash];
       await expect(
         batchConversionProxy.batchNativeConversionPayments([wrongConvRequest], false, feeAddress, {
@@ -896,7 +896,7 @@ describe('contract: BatchConversionPayments', async () => {
       ).to.be.revertedWith('paymentProxy transferExactEthWithReferenceAndFee failed');
     });
     it('cannot transfer if rate is too old', async () => {
-      const wrongConvRequest = Utils.deepCopy(ethConvRequest);
+      const wrongConvRequest = deepCopy(ethConvRequest);
       wrongConvRequest.maxRateTimespan = '1';
       await expect(
         batchConversionProxy.batchNativeConversionPayments([wrongConvRequest], false, feeAddress, {
diff --git a/packages/smart-contracts/test/contracts/BatchNoConversionEthPayments.test.ts b/packages/smart-contracts/test/contracts/BatchNoConversionEthPayments.test.ts
index d08067258c..93288dcaa7 100644
--- a/packages/smart-contracts/test/contracts/BatchNoConversionEthPayments.test.ts
+++ b/packages/smart-contracts/test/contracts/BatchNoConversionEthPayments.test.ts
@@ -1,7 +1,7 @@
 import { ethers, network } from 'hardhat';
 import { BigNumber, Signer } from 'ethers';
 import { expect } from 'chai';
-import Utils from '@requestnetwork/utils';
+import { deepCopy } from '@requestnetwork/utils';
 import {
   EthereumFeeProxy__factory,
   BatchNoConversionPayments__factory,
@@ -89,11 +89,11 @@ describe('contract: batchNoConversionPayments: Ethereum', () => {
       beforeEthBalance1 = await provider.getBalance(payee1);
       beforeEthBalance2 = await provider.getBalance(payee2);
 
-      const copyEthRequestDetail1 = Utils.deepCopy(ethRequestDetail1);
+      const copyEthRequestDetail1 = deepCopy(ethRequestDetail1);
       copyEthRequestDetail1.requestAmount = '2000';
       copyEthRequestDetail1.feeAmount = '100';
 
-      const copyEthRequestDetail2 = Utils.deepCopy(ethRequestDetail2);
+      const copyEthRequestDetail2 = deepCopy(ethRequestDetail2);
       copyEthRequestDetail2.requestAmount = '3000';
       copyEthRequestDetail2.feeAmount = '200';
       await expect(
@@ -149,7 +149,7 @@ describe('contract: batchNoConversionPayments: Ethereum', () => {
       const feeAmount = 1;
       const nbTxs = 10; // to compare gas optim, go to 100.
 
-      const copyEthRequestDetail = Utils.deepCopy(ethRequestDetail2);
+      const copyEthRequestDetail = deepCopy(ethRequestDetail2);
       copyEthRequestDetail.requestAmount = amount.toString();
       copyEthRequestDetail.feeAmount = feeAmount.toString();
       const totalAmount = BigNumber.from(((amount + feeAmount) * nbTxs).toString());
diff --git a/packages/thegraph-data-access/src/data-access.ts b/packages/thegraph-data-access/src/data-access.ts
index 273b1ad9dc..9078137d8b 100644
--- a/packages/thegraph-data-access/src/data-access.ts
+++ b/packages/thegraph-data-access/src/data-access.ts
@@ -3,7 +3,7 @@ import TypedEmitter from 'typed-emitter';
 
 import { BigNumber } from 'ethers';
 
-import Utils from '@requestnetwork/utils';
+import { getCurrentTimestampInSecond, retry, SimpleLogger } from '@requestnetwork/utils';
 import { Block } from '@requestnetwork/data-access';
 import { DataAccessTypes, LogTypes, StorageTypes } from '@requestnetwork/types';
 
@@ -179,7 +179,7 @@ export class TheGraphDataRead implements DataAccessTypes.IDataRead {
         transactions: [
           {
             state: DataAccessTypes.TransactionState.PENDING,
-            timestamp: Utils.getCurrentTimestampInSecond(),
+            timestamp: getCurrentTimestampInSecond(),
             transaction,
           },
         ],
@@ -219,7 +219,7 @@ export class TheGraphDataWrite implements DataAccessTypes.IDataWrite {
     private readonly graphql: SubgraphClient,
     { network, logger, pendingStore }: TheGraphDataAccessBaseOptions,
   ) {
-    this.logger = logger || new Utils.SimpleLogger();
+    this.logger = logger || new SimpleLogger();
     this.network = network;
     this.pendingStore = pendingStore;
   }
@@ -269,7 +269,7 @@ export class TheGraphDataWrite implements DataAccessTypes.IDataWrite {
     };
 
     storageResult.on('confirmed', () => {
-      Utils.retry(
+      retry(
         async () => {
           const response = await this.graphql.getTransactionsByHash(storageResult.id);
           if (response.transactions.length === 0) {
diff --git a/packages/toolbox/src/chainlinkConversionPathTools.ts b/packages/toolbox/src/chainlinkConversionPathTools.ts
index 585f9a0f69..b92a3ea419 100644
--- a/packages/toolbox/src/chainlinkConversionPathTools.ts
+++ b/packages/toolbox/src/chainlinkConversionPathTools.ts
@@ -8,7 +8,7 @@ import {
 import { CurrencyManager, UnsupportedCurrencyError } from '@requestnetwork/currency';
 import Bluebird from 'bluebird';
 import chunk from 'lodash/chunk';
-import Utils from '@requestnetwork/utils';
+import { retry } from '@requestnetwork/utils';
 
 export interface IOptions {
   network?: string;
@@ -75,13 +75,10 @@ class ChainlinkConversionPathTools {
       chunks,
       (blocks) => {
         console.error(`Fetching logs from ${blocks[0]} to ${blocks[blocks.length - 1]}`);
-        return Utils.retry(
-          this.chainLinkConversionPath.queryFilter.bind(this.chainLinkConversionPath),
-          {
-            maxRetries: 3,
-            retryDelay: 2000,
-          },
-        )(
+        return retry(this.chainLinkConversionPath.queryFilter.bind(this.chainLinkConversionPath), {
+          maxRetries: 3,
+          retryDelay: 2000,
+        })(
           this.chainLinkConversionPath.filters.AggregatorUpdated(),
           blocks[0],
           blocks[blocks.length - 1],
diff --git a/packages/transaction-manager/src/clear-transaction.ts b/packages/transaction-manager/src/clear-transaction.ts
index 52404a3641..2a903bb076 100644
--- a/packages/transaction-manager/src/clear-transaction.ts
+++ b/packages/transaction-manager/src/clear-transaction.ts
@@ -1,6 +1,6 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { TransactionTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 /**
  * Class representing a clear transaction
@@ -27,7 +27,7 @@ export default class ClearTransaction implements TransactionTypes.ITransaction {
    * @returns a promise resolving the transaction data hash
    */
   public async getHash(): Promise<string> {
-    return MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(JSON.parse(this.data)));
+    return MultiFormat.serialize(normalizeKeccak256Hash(JSON.parse(this.data)));
   }
 
   /**
diff --git a/packages/transaction-manager/src/encrypted-transaction.ts b/packages/transaction-manager/src/encrypted-transaction.ts
index fcfc86eabb..3733127abe 100644
--- a/packages/transaction-manager/src/encrypted-transaction.ts
+++ b/packages/transaction-manager/src/encrypted-transaction.ts
@@ -1,6 +1,6 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { EncryptionTypes, TransactionTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { decrypt, normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 /**
  * Class representing an encrypted transaction
@@ -40,7 +40,7 @@ export default class EncryptedTransaction implements TransactionTypes.ITransacti
     if (this.data === '') {
       try {
         const encryptedData = MultiFormat.deserialize(this.persistedData);
-        this.data = await Utils.encryption.decrypt(encryptedData, this.channelKey);
+        this.data = await decrypt(encryptedData, this.channelKey);
       } catch {
         throw new Error('Impossible to decrypt the transaction');
       }
@@ -57,7 +57,7 @@ export default class EncryptedTransaction implements TransactionTypes.ITransacti
     if (this.dataHashSerialized === '') {
       const data = await this.getData();
       try {
-        const dataHash = Utils.crypto.normalizeKeccak256Hash(JSON.parse(data));
+        const dataHash = normalizeKeccak256Hash(JSON.parse(data));
         this.dataHashSerialized = MultiFormat.serialize(dataHash);
       } catch (e) {
         throw new Error('Impossible to JSON parse the decrypted transaction data');
diff --git a/packages/transaction-manager/src/transaction-manager.ts b/packages/transaction-manager/src/transaction-manager.ts
index 427c818c8c..d285111054 100644
--- a/packages/transaction-manager/src/transaction-manager.ts
+++ b/packages/transaction-manager/src/transaction-manager.ts
@@ -5,7 +5,7 @@ import {
   EncryptionTypes,
   TransactionTypes,
 } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 import { EventEmitter } from 'events';
 
@@ -47,9 +47,7 @@ export default class TransactionManager implements TransactionTypes.ITransaction
     let channelEncryptionMethod: string | undefined;
 
     // compute hash to add it to the topics
-    const hash = MultiFormat.serialize(
-      Utils.crypto.normalizeKeccak256Hash(JSON.parse(transactionData)),
-    );
+    const hash = MultiFormat.serialize(normalizeKeccak256Hash(JSON.parse(transactionData)));
 
     // Need to create a new channel (only the first transaction can have the hash equals to the channel id)
     if (channelId === hash) {
diff --git a/packages/transaction-manager/src/transactions-factory.ts b/packages/transaction-manager/src/transactions-factory.ts
index 658ac3b350..9a639d078c 100644
--- a/packages/transaction-manager/src/transactions-factory.ts
+++ b/packages/transaction-manager/src/transactions-factory.ts
@@ -1,6 +1,10 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { EncryptionTypes, TransactionTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import {
+  encrypt,
+  generate32BufferKey,
+  getIdentityFromEncryptionParams,
+} from '@requestnetwork/utils';
 
 /**
  * Class to create transactions (clear and encrypted)
@@ -39,10 +43,10 @@ export default class TransactionsFactory {
     const encryptionMethod = `${EncryptionTypes.METHOD.ECIES}-${EncryptionTypes.METHOD.AES256_GCM}`;
 
     // Generate a key for the AES encryption
-    const symmetricKey: string = await Utils.crypto.generate32BufferKey();
+    const symmetricKey: string = await generate32BufferKey();
 
     // Encrypt the data with the key and the AES256-GCM algorithm
-    const encryptedData: EncryptionTypes.IEncryptedData = await Utils.encryption.encrypt(data, {
+    const encryptedData: EncryptionTypes.IEncryptedData = await encrypt(data, {
       key: symmetricKey,
       method: EncryptionTypes.METHOD.AES256_GCM,
     });
@@ -71,12 +75,11 @@ export default class TransactionsFactory {
         encryptedKey: EncryptionTypes.IEncryptedData;
         multiFormattedIdentity: string;
       }> => {
-        const encryptedKey: EncryptionTypes.IEncryptedData = await Utils.encryption.encrypt(
+        const encryptedKey: EncryptionTypes.IEncryptedData = await encrypt(
           symmetricKey,
           encryptionParam,
         );
-        const identityEncryption =
-          Utils.encryption.getIdentityFromEncryptionParams(encryptionParam);
+        const identityEncryption = getIdentityFromEncryptionParams(encryptionParam);
         const multiFormattedIdentity: string = MultiFormat.serialize(identityEncryption);
 
         return { encryptedKey, multiFormattedIdentity };
@@ -123,10 +126,7 @@ export default class TransactionsFactory {
     }
 
     // Encrypt the data with the key and the AES256-GCM algorithm
-    const encryptedData: EncryptionTypes.IEncryptedData = await Utils.encryption.encrypt(
-      data,
-      channelKey,
-    );
+    const encryptedData: EncryptionTypes.IEncryptedData = await encrypt(data, channelKey);
 
     try {
       JSON.parse(data);
diff --git a/packages/transaction-manager/test/index.test.ts b/packages/transaction-manager/test/index.test.ts
index 0aae90e5d0..979aa9ddbd 100644
--- a/packages/transaction-manager/test/index.test.ts
+++ b/packages/transaction-manager/test/index.test.ts
@@ -1,5 +1,5 @@
 import MultiFormat from '@requestnetwork/multi-format';
-import Utils from '@requestnetwork/utils';
+import { normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 import { EventEmitter } from 'events';
 
@@ -27,9 +27,9 @@ const tx2: DataAccessTypes.ITimestampedTransaction = {
   transaction: { data: data2 },
 };
 
-const dataHash = Utils.crypto.normalizeKeccak256Hash(JSON.parse(data));
+const dataHash = normalizeKeccak256Hash(JSON.parse(data));
 const channelId = MultiFormat.serialize(dataHash);
-const dataHash2 = Utils.crypto.normalizeKeccak256Hash(JSON.parse(data2));
+const dataHash2 = normalizeKeccak256Hash(JSON.parse(data2));
 const channelId2 = MultiFormat.serialize(dataHash2);
 
 const fakeMetaDataAccessPersistReturn: DataAccessTypes.IReturnPersistTransaction = Object.assign(
diff --git a/packages/transaction-manager/test/unit/channel-parser.test.ts b/packages/transaction-manager/test/unit/channel-parser.test.ts
index 4441cc7ce7..6ad4b4cfae 100644
--- a/packages/transaction-manager/test/unit/channel-parser.test.ts
+++ b/packages/transaction-manager/test/unit/channel-parser.test.ts
@@ -1,9 +1,9 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { TransactionTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import ChannelParser from '../../src/channel-parser';
 import TransactionsFactory from '../../src/transactions-factory';
 import * as TestData from './utils/test-data';
+import { normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 let channelParser: ChannelParser;
 
@@ -21,9 +21,9 @@ const tx2: TransactionTypes.ITimestampedTransaction = {
   transaction: { data: data2 },
 };
 
-const dataHash = Utils.crypto.normalizeKeccak256Hash(JSON.parse(data));
+const dataHash = normalizeKeccak256Hash(JSON.parse(data));
 const channelId = MultiFormat.serialize(dataHash);
-const dataHash2 = Utils.crypto.normalizeKeccak256Hash(JSON.parse(data2));
+const dataHash2 = normalizeKeccak256Hash(JSON.parse(data2));
 const channelId2 = MultiFormat.serialize(dataHash2);
 
 /* eslint-disable @typescript-eslint/no-unused-expressions */
diff --git a/packages/transaction-manager/test/unit/clear-transaction.test.ts b/packages/transaction-manager/test/unit/clear-transaction.test.ts
index e34c119d19..52b1aaf7ef 100644
--- a/packages/transaction-manager/test/unit/clear-transaction.test.ts
+++ b/packages/transaction-manager/test/unit/clear-transaction.test.ts
@@ -1,6 +1,6 @@
 import MultiFormat from '@requestnetwork/multi-format';
-import Utils from '@requestnetwork/utils';
 import ClearTransaction from '../../src/clear-transaction';
+import { normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 const data = '{ "what": "ever", "it": "is,", "this": "must", "work": true }';
 
@@ -21,7 +21,7 @@ describe('clear-transaction', () => {
 
       // 'hash not right'
       expect(await tx.getHash()).toEqual(
-        MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(JSON.parse(data))),
+        MultiFormat.serialize(normalizeKeccak256Hash(JSON.parse(data))),
       );
     });
   });
diff --git a/packages/transaction-manager/test/unit/encryption-transaction.test.ts b/packages/transaction-manager/test/unit/encryption-transaction.test.ts
index 156119639b..c42d65ded0 100644
--- a/packages/transaction-manager/test/unit/encryption-transaction.test.ts
+++ b/packages/transaction-manager/test/unit/encryption-transaction.test.ts
@@ -1,11 +1,11 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { EncryptionTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 
 import EncryptedTransaction from '../../src/encrypted-transaction';
+import { encrypt, normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 const data = '{ "what": "ever", "it": "is,", "this": "must", "work": true }';
-const hash = MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(JSON.parse(data)));
+const hash = MultiFormat.serialize(normalizeKeccak256Hash(JSON.parse(data)));
 const channelKey = {
   key: 'XYVH7kMWMAy/if+IZ0e7EXMbPVptHd22Xmpr9ktmjRo=',
   method: EncryptionTypes.METHOD.AES256_CBC,
@@ -35,7 +35,7 @@ describe('encryption-transaction', () => {
   describe('getError', () => {
     it('can get error of a transaction not parsable', async () => {
       const encryptedDataNotParsable = MultiFormat.serialize(
-        await Utils.encryption.encrypt('Not parsable', channelKey),
+        await encrypt('Not parsable', channelKey),
       );
 
       const tx = new EncryptedTransaction(encryptedDataNotParsable, channelKey);
diff --git a/packages/transaction-manager/test/unit/utils/test-data.ts b/packages/transaction-manager/test/unit/utils/test-data.ts
index 821e7de438..8f80914b4c 100644
--- a/packages/transaction-manager/test/unit/utils/test-data.ts
+++ b/packages/transaction-manager/test/unit/utils/test-data.ts
@@ -1,5 +1,5 @@
 import { DecryptionProviderTypes, EncryptionTypes, IdentityTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
+import { decrypt } from '@requestnetwork/utils';
 
 export const idRaw1 = {
   address: '0xaf083f77f1ffd54218d91491afd06c9296eac3ce',
@@ -65,11 +65,11 @@ export const fakeDecryptionProvider: DecryptionProviderTypes.IDecryptionProvider
   ): Promise<string> => {
     switch (identity.value.toLowerCase()) {
       case idRaw1.address:
-        return Utils.encryption.decrypt(data, idRaw1.decryptionParams);
+        return decrypt(data, idRaw1.decryptionParams);
       case idRaw2.address:
-        return Utils.encryption.decrypt(data, idRaw2.decryptionParams);
+        return decrypt(data, idRaw2.decryptionParams);
       case idRaw3.address:
-        return Utils.encryption.decrypt(data, idRaw3.decryptionParams);
+        return decrypt(data, idRaw3.decryptionParams);
       default:
         throw new Error('Identity not registered');
     }
diff --git a/packages/usage-examples/src/mock/mock-storage.ts b/packages/usage-examples/src/mock/mock-storage.ts
index 54dfd91030..db4166116b 100644
--- a/packages/usage-examples/src/mock/mock-storage.ts
+++ b/packages/usage-examples/src/mock/mock-storage.ts
@@ -1,7 +1,7 @@
 import MultiFormat from '@requestnetwork/multi-format';
 import { StorageTypes } from '@requestnetwork/types';
-import Utils from '@requestnetwork/utils';
 import { EventEmitter } from 'events';
+import { getCurrentTimestampInSecond, normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 /**
  * Storage layer implemented with in-memory hashmap, to be used for testing.
@@ -23,9 +23,9 @@ export default class MockStorage implements StorageTypes.IStorage {
     if (!content) {
       throw Error('Error: no content provided');
     }
-    const hash = MultiFormat.serialize(Utils.crypto.normalizeKeccak256Hash(content));
+    const hash = MultiFormat.serialize(normalizeKeccak256Hash(content));
 
-    const nowTimestampInSec = Utils.getCurrentTimestampInSecond();
+    const nowTimestampInSec = getCurrentTimestampInSecond();
 
     this.data[hash] = {
       content,
@@ -84,7 +84,7 @@ export default class MockStorage implements StorageTypes.IStorage {
       },
     }));
 
-    const nowTimestampInSec = Utils.getCurrentTimestampInSecond();
+    const nowTimestampInSec = getCurrentTimestampInSecond();
 
     return {
       entries,
diff --git a/packages/utils/.eslintrc b/packages/utils/.eslintrc
new file mode 100644
index 0000000000..f465e15adc
--- /dev/null
+++ b/packages/utils/.eslintrc
@@ -0,0 +1,5 @@
+{
+  "rules": {
+    "import/no-default-export": "error"
+  }
+}
diff --git a/packages/utils/README.md b/packages/utils/README.md
index 0198b28554..5905257c54 100644
--- a/packages/utils/README.md
+++ b/packages/utils/README.md
@@ -3,24 +3,6 @@
 `@requestnetwork/utils` is a typescript library part of the [Request Network protocol](https://github.com/RequestNetwork/requestNetwork).
 It is a collection of tools shared between the @requestnetwork packages.
 
-- Elliptic curve crypto and signature
-  - crypto.normalizeKeccak256Hash()
-  - crypto.ecUtils.getAddressFromPrivateKey()
-  - crypto.ecUtils.recover()
-  - crypto.ecUtils.sign()
-  - signature.getIdentityFromSignatureParams()
-  - signature.recover()
-  - signature.sign()
-- Identity
-  - identity.areEqual()
-  - identity.normalizeIdentityValue()
-  - isString
-- Miscellaneous
-  - deepCopy()
-  - deepSort()
-  - flatten2DimensionsArray()
-  - getCurrentTimestampInSecond()
-
 ## Installation
 
 ```bash
@@ -30,9 +12,9 @@ npm install @requestnetwork/utils
 ## Usage
 
 ```javascript
-import Utils from '@requestnetwork/utils';
+import { normalizeKeccak256Hash } from '@requestnetwork/utils';
 
-const hash = Utils.crypto.normalizeKeccak256Hash({ exampleData: true });
+const hash = normalizeKeccak256Hash({ exampleData: true });
 ```
 
 ## Contributing
diff --git a/packages/utils/src/amount.ts b/packages/utils/src/amount.ts
index 9982f1e9d2..b78f36bb40 100644
--- a/packages/utils/src/amount.ts
+++ b/packages/utils/src/amount.ts
@@ -1,16 +1,12 @@
 import { RequestLogicTypes } from '@requestnetwork/types';
-import Utils from './utils';
+import { isString } from './utils';
 
 import { BigNumber } from 'ethers';
 
 /**
  * Function to manage amounts
  */
-export default {
-  add,
-  isValid,
-  reduce,
-};
+export { addAmount, isValidAmount, reduceAmount };
 
 const regexInteger = RegExp(/^[\d]+$/);
 
@@ -21,9 +17,9 @@ const regexInteger = RegExp(/^[\d]+$/);
  *
  * @returns boolean true if amount is a valid amount
  */
-function isValid(amount: RequestLogicTypes.Amount | BigNumber): boolean {
+function isValidAmount(amount: RequestLogicTypes.Amount | BigNumber): boolean {
   return (
-    (Utils.isString(amount) && regexInteger.test(amount as string)) ||
+    (isString(amount) && regexInteger.test(amount as string)) ||
     (typeof amount === 'number' && Number.isSafeInteger(Number(amount)) && Number(amount) >= 0)
   );
 }
@@ -36,11 +32,11 @@ function isValid(amount: RequestLogicTypes.Amount | BigNumber): boolean {
  *
  * @returns string the new amount in a string format
  */
-function add(amount: RequestLogicTypes.Amount, delta: RequestLogicTypes.Amount): string {
-  if (!isValid(amount)) {
+function addAmount(amount: RequestLogicTypes.Amount, delta: RequestLogicTypes.Amount): string {
+  if (!isValidAmount(amount)) {
     throw Error('amount must represent a positive integer');
   }
-  if (!isValid(delta)) {
+  if (!isValidAmount(delta)) {
     throw Error('delta must represent a positive integer');
   }
 
@@ -59,11 +55,11 @@ function add(amount: RequestLogicTypes.Amount, delta: RequestLogicTypes.Amount):
  *
  * @returns string the new amount in a string format
  */
-function reduce(amount: RequestLogicTypes.Amount, delta: RequestLogicTypes.Amount): string {
-  if (!isValid(amount)) {
+function reduceAmount(amount: RequestLogicTypes.Amount, delta: RequestLogicTypes.Amount): string {
+  if (!isValidAmount(amount)) {
     throw Error('amount must represent a positive integer');
   }
-  if (!isValid(delta)) {
+  if (!isValidAmount(delta)) {
     throw Error('delta must represent a positive integer');
   }
 
@@ -72,7 +68,7 @@ function reduce(amount: RequestLogicTypes.Amount, delta: RequestLogicTypes.Amoun
   const newAmount = amountBN.sub(deltaBN).toString();
 
   // Check if the new amount is valid (basically it is not negative)
-  if (!isValid(newAmount)) {
+  if (!isValidAmount(newAmount)) {
     throw Error('result of reduce is not valid');
   }
   return newAmount;
diff --git a/packages/utils/src/bignumber.ts b/packages/utils/src/bignumber.ts
index 876db4126e..1f94abbbe5 100644
--- a/packages/utils/src/bignumber.ts
+++ b/packages/utils/src/bignumber.ts
@@ -1,11 +1,11 @@
 import { BigNumber, BigNumberish } from 'ethers';
 
 /** Returns the minimum of two big numbers */
-const min = (a: BigNumberish, b: BigNumberish): BigNumber =>
+const minBigNumber = (a: BigNumberish, b: BigNumberish): BigNumber =>
   BigNumber.from(a).lt(b) ? BigNumber.from(a) : BigNumber.from(b);
 
 /** Returns the maximum of two big numbers */
-const max = (a: BigNumberish, b: BigNumberish): BigNumber =>
+const maxBigNumber = (a: BigNumberish, b: BigNumberish): BigNumber =>
   BigNumber.from(a).gt(b) ? BigNumber.from(a) : BigNumber.from(b);
 
-export default { min, max };
+export { minBigNumber, maxBigNumber };
diff --git a/packages/utils/src/cached-throttle.ts b/packages/utils/src/cached-throttle.ts
index 175f9bd40a..cd98bc061c 100644
--- a/packages/utils/src/cached-throttle.ts
+++ b/packages/utils/src/cached-throttle.ts
@@ -5,7 +5,7 @@
  * @param target The target function
  * @param minimumDelay The minimum delay between calls to the target function in milliseconds
  */
-export const cachedThrottle = <TParams extends unknown[], TReturn>(
+const cachedThrottle = <TParams extends unknown[], TReturn>(
   target: (...params: TParams) => Promise<TReturn>,
   minimumDelay: number,
 ): ((...params: TParams) => Promise<TReturn>) => {
@@ -29,4 +29,4 @@ export const cachedThrottle = <TParams extends unknown[], TReturn>(
   };
 };
 
-export default cachedThrottle;
+export { cachedThrottle };
diff --git a/packages/utils/src/crypto.ts b/packages/utils/src/crypto.ts
index 11acb1f3e0..bc99fa3769 100644
--- a/packages/utils/src/crypto.ts
+++ b/packages/utils/src/crypto.ts
@@ -1,15 +1,37 @@
 import { MultiFormatTypes } from '@requestnetwork/types';
 import { ethers } from 'ethers';
-import CryptoWrapper from './crypto/crypto-wrapper';
-import EcUtils from './crypto/ec-utils';
-import Utils from './utils';
+import {
+  decryptWithAes256cbc,
+  decryptWithAes256gcm,
+  encryptWithAes256cbc,
+  encryptWithAes256gcm,
+  random32Bytes,
+} from './crypto/crypto-wrapper';
+import {
+  ecDecrypt,
+  ecEncrypt,
+  getAddressFromPrivateKey,
+  getAddressFromPublicKey,
+  ecRecover,
+  ecSign,
+} from './crypto/ec-utils';
+import { deepSort } from './utils';
 
 /**
  * manages crypto functions
  */
-export default {
-  CryptoWrapper,
-  EcUtils,
+export {
+  decryptWithAes256cbc,
+  decryptWithAes256gcm,
+  encryptWithAes256cbc,
+  encryptWithAes256gcm,
+  random32Bytes,
+  ecDecrypt,
+  ecEncrypt,
+  getAddressFromPrivateKey,
+  getAddressFromPublicKey,
+  ecRecover,
+  ecSign,
   generate32BufferKey,
   generate8randomBytes,
   keccak256Hash,
@@ -45,7 +67,7 @@ function normalize(data: unknown): string {
   }
 
   // deeply sort data keys
-  const sortedData = Utils.deepSort(data);
+  const sortedData = deepSort(data);
 
   // convert to string and lowerCase it, to be case insensitive (e.g: avoid ethereum address casing checksum)
   return JSON.stringify(sortedData).toLowerCase();
@@ -81,7 +103,7 @@ function last20bytesOfNormalizedKeccak256Hash(data: unknown): string {
  * @returns a random buffer of 32 bytes in a base64 string
  */
 async function generate32BufferKey(): Promise<string> {
-  return (await CryptoWrapper.random32Bytes()).toString('base64');
+  return (await random32Bytes()).toString('base64');
 }
 
 /**
@@ -92,6 +114,6 @@ async function generate32BufferKey(): Promise<string> {
  * @returns a string of 8 random bytes
  */
 async function generate8randomBytes(): Promise<string> {
-  const random32Bytes = await CryptoWrapper.random32Bytes();
-  return random32Bytes.slice(0, 8).toString('hex');
+  const random32BytesHex = await random32Bytes();
+  return random32BytesHex.slice(0, 8).toString('hex');
 }
diff --git a/packages/utils/src/crypto/crypto-wrapper.ts b/packages/utils/src/crypto/crypto-wrapper.ts
index a102e47fdf..50b0151868 100644
--- a/packages/utils/src/crypto/crypto-wrapper.ts
+++ b/packages/utils/src/crypto/crypto-wrapper.ts
@@ -3,7 +3,7 @@ import { createCipheriv, createDecipheriv, randomBytes as cryptoRandomBytes } fr
 /**
  * Functions to manage native crypto functions of nodeJs
  */
-export default {
+export {
   decryptWithAes256cbc,
   decryptWithAes256gcm,
   encryptWithAes256cbc,
diff --git a/packages/utils/src/crypto/ec-utils.ts b/packages/utils/src/crypto/ec-utils.ts
index 3030d9b514..36caf46965 100644
--- a/packages/utils/src/crypto/ec-utils.ts
+++ b/packages/utils/src/crypto/ec-utils.ts
@@ -4,13 +4,13 @@ import { ethers } from 'ethers';
 /**
  * Function to manage Elliptic-curve cryptography
  */
-export default {
-  decrypt,
-  encrypt,
+export {
+  ecDecrypt,
+  ecEncrypt,
   getAddressFromPrivateKey,
   getAddressFromPublicKey,
-  recover,
-  sign,
+  ecRecover,
+  ecSign,
 };
 
 /**
@@ -61,13 +61,13 @@ function getAddressFromPublicKey(publicKey: string): string {
 }
 
 /**
- * Function sign data with ECDSA
+ * Function ecSigndata with ECDSA
  *
  * @param data the data to sign
  *
  * @returns the signature
  */
-function sign(privateKey: string, data: string): string {
+function ecSign(privateKey: string, data: string): string {
   try {
     const signingKey = new ethers.utils.SigningKey(privateKey);
     return ethers.utils.joinSignature(signingKey.signDigest(data));
@@ -91,7 +91,7 @@ function sign(privateKey: string, data: string): string {
  *
  * @returns the address
  */
-function recover(signature: string, data: string): string {
+function ecRecover(signature: string, data: string): string {
   try {
     signature = signature.replace(/^0x/, '');
     data = data.replace(/^0x/, '');
@@ -131,9 +131,9 @@ function recover(signature: string, data: string): string {
  *
  * @returns the encrypted data
  */
-async function encrypt(publicKey: string, data: string): Promise<string> {
+async function ecEncrypt(publicKey: string, data: string): Promise<string> {
   try {
-    // Encrypts the data with the publicKey, returns the encrypted data with encryption parameters (such as IV..)
+    // encrypts the data with the publicKey, returns the encrypted data with encryption parameters (such as IV..)
     const compressed = compressPublicKey(publicKey);
     const encrypted = await EcCrypto.encrypt(Buffer.from(compressed), Buffer.from(data));
 
@@ -163,11 +163,11 @@ async function encrypt(publicKey: string, data: string): Promise<string> {
  *
  * @returns the decrypted data
  */
-async function decrypt(privateKey: string, encrypted: string): Promise<string> {
+async function ecDecrypt(privateKey: string, data: string): Promise<string> {
   try {
     const buf = await EcCrypto.decrypt(
       Buffer.from(privateKey.replace(/^0x/, ''), 'hex'),
-      eciesSplit(encrypted),
+      eciesSplit(data),
     );
     return buf.toString();
   } catch (e) {
@@ -204,7 +204,7 @@ function compressPublicKey(publicKey: string): Uint8Array {
 
 /**
  * Split an encrypted string to ECIES params
- * inspired from https://github.com/pubkey/eth-crypto/blob/master/src/decrypt-with-private-key.js
+ * inspired from https://github.com/pubkey/eth-crypto/blob/master/src/ecDecrypt-with-private-key.js
  */
 const eciesSplit = (str: string): EcCrypto.Ecies => {
   const buf = Buffer.from(str, 'hex');
diff --git a/packages/utils/src/encryption.ts b/packages/utils/src/encryption.ts
index feddb5c620..746c917b33 100644
--- a/packages/utils/src/encryption.ts
+++ b/packages/utils/src/encryption.ts
@@ -1,14 +1,18 @@
 import { EncryptionTypes, IdentityTypes } from '@requestnetwork/types';
-import Crypto from './crypto';
+import {
+  decryptWithAes256cbc,
+  decryptWithAes256gcm,
+  ecDecrypt,
+  ecEncrypt,
+  encryptWithAes256cbc,
+  encryptWithAes256gcm,
+  getAddressFromPublicKey,
+} from './index';
 
 /**
  * Functions to manage encryption
  */
-export default {
-  decrypt,
-  encrypt,
-  getIdentityFromEncryptionParams,
-};
+export { decrypt, encrypt, getIdentityFromEncryptionParams };
 
 /**
  * Function to get the identity from the encryption parameters
@@ -23,7 +27,7 @@ function getIdentityFromEncryptionParams(
   if (encryptionParams.method === EncryptionTypes.METHOD.ECIES) {
     return {
       type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
-      value: Crypto.EcUtils.getAddressFromPublicKey(encryptionParams.key),
+      value: getAddressFromPublicKey(encryptionParams.key),
     };
   }
 
@@ -42,7 +46,7 @@ async function encrypt(
   encryptionParams: EncryptionTypes.IEncryptionParameters,
 ): Promise<EncryptionTypes.IEncryptedData> {
   if (encryptionParams.method === EncryptionTypes.METHOD.ECIES) {
-    const encryptedData = await Crypto.EcUtils.encrypt(encryptionParams.key, data);
+    const encryptedData = await ecEncrypt(encryptionParams.key, data);
     return {
       type: EncryptionTypes.METHOD.ECIES,
       value: encryptedData,
@@ -50,7 +54,7 @@ async function encrypt(
   }
 
   if (encryptionParams.method === EncryptionTypes.METHOD.AES256_CBC) {
-    const encryptedDataBuffer = await Crypto.CryptoWrapper.encryptWithAes256cbc(
+    const encryptedDataBuffer = await encryptWithAes256cbc(
       Buffer.from(data, 'utf-8'),
       Buffer.from(encryptionParams.key, 'base64'),
     );
@@ -61,7 +65,7 @@ async function encrypt(
   }
 
   if (encryptionParams.method === EncryptionTypes.METHOD.AES256_GCM) {
-    const encryptedDataBuffer = await Crypto.CryptoWrapper.encryptWithAes256gcm(
+    const encryptedDataBuffer = await encryptWithAes256gcm(
       Buffer.from(data, 'utf-8'),
       Buffer.from(encryptionParams.key, 'base64'),
     );
@@ -91,14 +95,14 @@ async function decrypt(
     if (decryptionParams.method !== EncryptionTypes.METHOD.ECIES) {
       throw new Error(`decryptionParams.method should be ${EncryptionTypes.METHOD.ECIES}`);
     }
-    return Crypto.EcUtils.decrypt(decryptionParams.key, encryptedData.value);
+    return ecDecrypt(decryptionParams.key, encryptedData.value);
   }
 
   if (encryptedData.type === EncryptionTypes.METHOD.AES256_CBC) {
     if (decryptionParams.method !== EncryptionTypes.METHOD.AES256_CBC) {
       throw new Error(`decryptionParams.method should be ${EncryptionTypes.METHOD.AES256_CBC}`);
     }
-    const dataBuffer = await Crypto.CryptoWrapper.decryptWithAes256cbc(
+    const dataBuffer = await decryptWithAes256cbc(
       // remove the multi-format padding and decode from the base64 to a buffer
       Buffer.from(encryptedData.value, 'base64'),
       Buffer.from(decryptionParams.key, 'base64'),
@@ -111,7 +115,7 @@ async function decrypt(
       throw new Error(`decryptionParams.method should be ${EncryptionTypes.METHOD.AES256_GCM}`);
     }
 
-    const dataBuffer = await Crypto.CryptoWrapper.decryptWithAes256gcm(
+    const dataBuffer = await decryptWithAes256gcm(
       // remove the multi-format padding and decode from the base64 to a buffer
       Buffer.from(encryptedData.value, 'base64'),
       Buffer.from(decryptionParams.key, 'base64'),
diff --git a/packages/utils/src/estimate-gas-fees.ts b/packages/utils/src/estimate-gas-fees.ts
index 15f4ebce14..ec21ef3b69 100644
--- a/packages/utils/src/estimate-gas-fees.ts
+++ b/packages/utils/src/estimate-gas-fees.ts
@@ -1,6 +1,6 @@
 import { BigNumber, constants, providers } from 'ethers';
 import { suggestFees } from 'eip1559-fee-suggestions-ethers';
-import Utils from './index';
+import { maxBigNumber } from './index';
 
 /**
  * The function estimates gas fee with EIP-1559.
@@ -25,9 +25,9 @@ async function estimateGasFees({
 }> {
   const suggestedFee = await suggestFees(provider as providers.JsonRpcProvider);
 
-  const baseFee = Utils.max(suggestedFee.baseFeeSuggestion, gasPriceMin || constants.Zero);
+  const baseFee = maxBigNumber(suggestedFee.baseFeeSuggestion, gasPriceMin || constants.Zero);
 
-  const maxPriorityFeePerGas = Utils.max(
+  const maxPriorityFeePerGas = maxBigNumber(
     suggestedFee.maxPriorityFeeSuggestions.urgent,
     gasPriceMin || constants.Zero,
   );
@@ -43,4 +43,4 @@ async function estimateGasFees({
   };
 }
 
-export default estimateGasFees;
+export { estimateGasFees };
diff --git a/packages/utils/src/identity.ts b/packages/utils/src/identity.ts
index dc0b52c97b..febe2f887f 100644
--- a/packages/utils/src/identity.ts
+++ b/packages/utils/src/identity.ts
@@ -8,12 +8,7 @@ const supportedIdentities: IdentityTypes.TYPE[] = [
 /**
  * Module to manage Request Logic Identity
  */
-export default {
-  areEqual,
-  hasError,
-  normalizeIdentityValue,
-  supportedIdentities,
-};
+export { areEqualIdentities, identityHasError, normalizeIdentityValue, supportedIdentities };
 
 /**
  * Checks if two identities are equals
@@ -22,7 +17,7 @@ export default {
  * @param IIdentity id2 second identity
  * @returns boolean
  */
-function areEqual(id1?: IdentityTypes.IIdentity, id2?: IdentityTypes.IIdentity): boolean {
+function areEqualIdentities(id1?: IdentityTypes.IIdentity, id2?: IdentityTypes.IIdentity): boolean {
   return (
     !!id1 &&
     !!id2 &&
@@ -47,7 +42,7 @@ function normalizeIdentityValue(value: string): string {
  * @param id identity to check
  * @returns the error or null if valid
  */
-function hasError(id: IdentityTypes.IIdentity): string | null {
+function identityHasError(id: IdentityTypes.IIdentity): string | null {
   if (!supportedIdentities.includes(id.type)) {
     return 'identity type not supported';
   }
diff --git a/packages/utils/src/index.ts b/packages/utils/src/index.ts
index 71289d7296..2d28f79455 100644
--- a/packages/utils/src/index.ts
+++ b/packages/utils/src/index.ts
@@ -1,30 +1,66 @@
-import amount from './amount';
-import cachedThrottle from './cached-throttle';
-import crypto from './crypto';
-import encryption from './encryption';
-import identity from './identity';
-import retry from './retry';
-import signature from './signature';
-import SimpleLogger from './simple-logger';
-import utils from './utils';
-import providers from './providers';
-import bignumbers from './bignumber';
-import estimateGasFees from './estimate-gas-fees';
-
 /**
  * Collection of general purpose utility function
  */
-export default {
-  SimpleLogger,
-  amount,
-  cachedThrottle,
-  crypto,
-  encryption,
-  identity,
-  retry,
-  signature,
-  ...providers,
-  ...utils,
-  ...bignumbers,
-  estimateGasFees,
-};
+
+export { addAmount, isValidAmount, reduceAmount } from './amount';
+
+export { minBigNumber, maxBigNumber } from './bignumber';
+
+export { cachedThrottle } from './cached-throttle';
+
+export {
+  decryptWithAes256cbc,
+  decryptWithAes256gcm,
+  encryptWithAes256cbc,
+  encryptWithAes256gcm,
+  random32Bytes,
+  ecDecrypt,
+  ecEncrypt,
+  getAddressFromPrivateKey,
+  getAddressFromPublicKey,
+  ecRecover,
+  ecSign,
+  generate32BufferKey,
+  generate8randomBytes,
+  keccak256Hash,
+  last20bytesOfNormalizedKeccak256Hash,
+  normalize,
+  normalizeKeccak256Hash,
+} from './crypto';
+
+export { decrypt, encrypt, getIdentityFromEncryptionParams } from './encryption';
+
+export { estimateGasFees } from './estimate-gas-fees';
+
+export {
+  areEqualIdentities,
+  identityHasError,
+  normalizeIdentityValue,
+  supportedIdentities,
+} from './identity';
+
+export {
+  setProviderFactory,
+  initPaymentDetectionApiKeys,
+  getDefaultProvider,
+  getCeloProvider,
+  networkRpcs,
+} from './providers';
+
+export { retry } from './retry';
+
+export { getIdentityFromSignatureParams, recoverSigner, sign } from './signature';
+
+export { SimpleLogger } from './simple-logger';
+
+export {
+  deepCopy,
+  deepSort,
+  flatten2DimensionsArray,
+  getCurrentTimestampInSecond,
+  isString,
+  timeoutPromise,
+  unique,
+  uniqueByProperty,
+  notNull,
+} from './utils';
diff --git a/packages/utils/src/providers.ts b/packages/utils/src/providers.ts
index 13cdc1046b..93c2e73b68 100644
--- a/packages/utils/src/providers.ts
+++ b/packages/utils/src/providers.ts
@@ -147,7 +147,7 @@ const getCeloProvider = (): providers.Provider => {
   return provider;
 };
 
-export default {
+export {
   setProviderFactory,
   initPaymentDetectionApiKeys,
   getDefaultProvider,
diff --git a/packages/utils/src/retry.ts b/packages/utils/src/retry.ts
index 10a20e21d6..fe534442ce 100644
--- a/packages/utils/src/retry.ts
+++ b/packages/utils/src/retry.ts
@@ -13,7 +13,7 @@ const DEFAULT_RETRY_DELAY = 100;
  * @param [options.maxRetries=DEFAULT_MAX_RETRIES] The maximum amount of retries for the function
  * @param [options.retryDelay=DEFAULT_RETRY_DELAY] The delay between retries
  */
-export const retry = <TParams extends unknown[], TReturn>(
+const retry = <TParams extends unknown[], TReturn>(
   target: (...params: TParams) => TReturn | Promise<TReturn>,
   {
     context,
@@ -57,4 +57,4 @@ export const retry = <TParams extends unknown[], TReturn>(
   };
 };
 
-export default retry;
+export { retry };
diff --git a/packages/utils/src/signature.ts b/packages/utils/src/signature.ts
index 0ec39b24b6..8692088108 100644
--- a/packages/utils/src/signature.ts
+++ b/packages/utils/src/signature.ts
@@ -1,15 +1,17 @@
 import { IdentityTypes, SignatureTypes } from '@requestnetwork/types';
 import { ethers } from 'ethers';
-import Crypto from './crypto';
+import {
+  ecRecover,
+  ecSign,
+  getAddressFromPrivateKey,
+  normalize,
+  normalizeKeccak256Hash,
+} from './crypto';
 
 /**
  * Function to manage Request Logic Signature
  */
-export default {
-  getIdentityFromSignatureParams,
-  recover,
-  sign,
-};
+export { getIdentityFromSignatureParams, recoverSigner, sign };
 
 // Use to localize the parameter V in an ECDSA signature in hex format
 const V_POSITION_FROM_END_IN_ECDSA_HEX = -2;
@@ -27,7 +29,7 @@ function getIdentityFromSignatureParams(
   if (signatureParams.method === SignatureTypes.METHOD.ECDSA) {
     return {
       type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
-      value: Crypto.EcUtils.getAddressFromPrivateKey(signatureParams.privateKey),
+      value: getAddressFromPrivateKey(signatureParams.privateKey),
     };
   }
 
@@ -49,19 +51,13 @@ function sign(
 ): SignatureTypes.ISignedData {
   let value: string;
   if (signatureParams.method === SignatureTypes.METHOD.ECDSA) {
-    value = Crypto.EcUtils.sign(
-      signatureParams.privateKey,
-      Crypto.normalizeKeccak256Hash(data).value,
-    );
+    value = ecSign(signatureParams.privateKey, normalizeKeccak256Hash(data).value);
     return { data, signature: { method: signatureParams.method, value } };
   }
 
   if (signatureParams.method === SignatureTypes.METHOD.ECDSA_ETHEREUM) {
-    const normalizedData = Crypto.normalize(data);
-    value = Crypto.EcUtils.sign(
-      signatureParams.privateKey,
-      ethers.utils.hashMessage(normalizedData),
-    );
+    const normalizedData = normalize(data);
+    value = ecSign(signatureParams.privateKey, ethers.utils.hashMessage(normalizedData));
 
     return { data, signature: { method: signatureParams.method, value } };
   }
@@ -77,13 +73,10 @@ function sign(
  * @param signedData the data signed
  * @returns identity of the signer
  */
-function recover(signedData: SignatureTypes.ISignedData): IdentityTypes.IIdentity {
+function recoverSigner(signedData: SignatureTypes.ISignedData): IdentityTypes.IIdentity {
   let value: string;
   if (signedData.signature.method === SignatureTypes.METHOD.ECDSA) {
-    value = Crypto.EcUtils.recover(
-      signedData.signature.value,
-      Crypto.normalizeKeccak256Hash(signedData.data).value,
-    );
+    value = ecRecover(signedData.signature.value, normalizeKeccak256Hash(signedData.data).value);
     return {
       type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
       value,
@@ -101,8 +94,8 @@ function recover(signedData: SignatureTypes.ISignedData): IdentityTypes.IIdentit
     } else if (v.toLowerCase() === '01') {
       signature = `${signedData.signature.value.slice(0, V_POSITION_FROM_END_IN_ECDSA_HEX)}1b`;
     }
-    const normalizedData = ethers.utils.hashMessage(Crypto.normalize(signedData.data));
-    value = Crypto.EcUtils.recover(signature, normalizedData).toLowerCase();
+    const normalizedData = ethers.utils.hashMessage(normalize(signedData.data));
+    value = ecRecover(signature, normalizedData).toLowerCase();
 
     return {
       type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
diff --git a/packages/utils/src/simple-logger.ts b/packages/utils/src/simple-logger.ts
index 45b2595e44..a2f709d109 100644
--- a/packages/utils/src/simple-logger.ts
+++ b/packages/utils/src/simple-logger.ts
@@ -7,7 +7,7 @@ const DEFAULT_LOG_LEVEL = LogTypes.LogLevel.QUIET;
 /**
  * Simple logger that outputs content to the console.
  */
-export default class SimpleLogger implements LogTypes.ILogger {
+export class SimpleLogger implements LogTypes.ILogger {
   /**
    * maxLogLevel, the maximum log level to display
    */
diff --git a/packages/utils/src/utils.ts b/packages/utils/src/utils.ts
index 5e8f622f48..f512a539ed 100644
--- a/packages/utils/src/utils.ts
+++ b/packages/utils/src/utils.ts
@@ -1,9 +1,9 @@
-import crypto from './crypto';
+import { normalizeKeccak256Hash } from './crypto';
 
 /**
  * Collection of general purpose utility function
  */
-export default {
+export {
   deepCopy,
   deepSort,
   flatten2DimensionsArray,
@@ -77,7 +77,7 @@ function unique<T>(array: T[]): { uniqueItems: T[]; duplicates: T[] } {
       accumulator: { uniqueItems: T[]; duplicates: T[]; uniqueItemsHashes: string[] },
       element: T,
     ) => {
-      const hash = crypto.normalizeKeccak256Hash(element);
+      const hash = normalizeKeccak256Hash(element);
 
       if (accumulator.uniqueItemsHashes.includes(hash.value)) {
         // if already included, adds it to the array of duplicates
@@ -109,7 +109,7 @@ function uniqueByProperty<T>(array: T[], property: keyof T): { uniqueItems: T[];
       accumulator: { uniqueItems: T[]; duplicates: T[]; uniqueItemsHashes: string[] },
       element: T,
     ) => {
-      const hash = crypto.normalizeKeccak256Hash(element[property]);
+      const hash = normalizeKeccak256Hash(element[property]);
 
       if (accumulator.uniqueItemsHashes.includes(hash.value)) {
         // if already included, adds it to the array of duplicates
diff --git a/packages/utils/test/amount.test.ts b/packages/utils/test/amount.test.ts
index 4d8892487d..d13cd746ac 100644
--- a/packages/utils/test/amount.test.ts
+++ b/packages/utils/test/amount.test.ts
@@ -1,6 +1,6 @@
 import { BigNumber } from 'ethers';
 
-import Amount from '../src/amount';
+import { addAmount, isValidAmount, reduceAmount } from '../src';
 
 const magicIntegerSmall = 10000;
 const magicIntegerBig = 1000000000000000000000000000000;
@@ -16,70 +16,70 @@ const arbitraryExpectedAmountPlusDelta = '223400000000000000';
 
 /* eslint-disable @typescript-eslint/no-unused-expressions */
 describe('Amount', () => {
-  describe('isValid', () => {
+  describe('isValidAmount', () => {
     it('can valid amount as small integer', () => {
       // 'integer should be valid'
-      expect(Amount.isValid(magicIntegerSmall)).toBe(true);
+      expect(isValidAmount(magicIntegerSmall)).toBe(true);
     });
     it('cannot valid amount as big integer', () => {
       // 'Big integer should not be valid'
-      expect(Amount.isValid(magicIntegerBig)).toBe(false);
+      expect(isValidAmount(magicIntegerBig)).toBe(false);
     });
     it('cannot valid amount as bn', () => {
       // 'BN should not be valid'
-      expect(Amount.isValid(BigNumber.from('1000000000000000000000000'))).toBe(false);
+      expect(isValidAmount(BigNumber.from('1000000000000000000000000'))).toBe(false);
     });
     it('can valid amount as string representing integer', () => {
       // 'integer as string should be valid'
-      expect(Amount.isValid('10000')).toBe(true);
+      expect(isValidAmount('10000')).toBe(true);
     });
     it('cannot valid amount as a small decimal', () => {
       // 'decimal should not be valid'
-      expect(Amount.isValid(magicFloatSmall)).toBe(false);
+      expect(isValidAmount(magicFloatSmall)).toBe(false);
     });
     it('cannot valid amount as a big decimal', () => {
       // 'decimal should not be valid'
-      expect(Amount.isValid(magicFloatBig)).toBe(false);
+      expect(isValidAmount(magicFloatBig)).toBe(false);
     });
     it('cannot valid amount as string representing small decimal', () => {
       // 'decimal as string should not be valid'
-      expect(Amount.isValid('10000.01')).toBe(false);
+      expect(isValidAmount('10000.01')).toBe(false);
     });
     it('cannot valid amount as string representing big decimal', () => {
       // 'decimal as string should not be valid'
-      expect(Amount.isValid('1000000000000000000000000000000000.01')).toBe(false);
+      expect(isValidAmount('1000000000000000000000000000000000.01')).toBe(false);
     });
     it('cannot valid amount as not number', () => {
       // 'Not number should not be valid'
-      expect(Amount.isValid('Not a number')).toBe(false);
+      expect(isValidAmount('Not a number')).toBe(false);
     });
     it('cannot valid amount as small integer', () => {
       // 'integer should not be valid'
-      expect(Amount.isValid(-magicIntegerSmall)).toBe(false);
+      expect(isValidAmount(-magicIntegerSmall)).toBe(false);
     });
     it('cannot valid amount as big integer negative', () => {
       // 'Big integer should not be valid'
-      expect(Amount.isValid(-magicIntegerBig)).toBe(false);
+      expect(isValidAmount(-magicIntegerBig)).toBe(false);
     });
     it('cannot valid an empty string', () => {
       // 'Empty string should not be valid'
-      expect(Amount.isValid('')).toBe(false);
+      expect(isValidAmount('')).toBe(false);
     });
   });
 
   describe('add', () => {
     it('cannot add amounts not number', () => {
-      expect(() => Amount.add('Not a number', '1000000000000000000')).toThrowError(
+      expect(() => addAmount('Not a number', '1000000000000000000')).toThrowError(
         'amount must represent a positive integer',
       );
 
-      expect(() => Amount.add('1000000000000000000', 'Not a number')).toThrowError(
+      expect(() => addAmount('1000000000000000000', 'Not a number')).toThrowError(
         'delta must represent a positive integer',
       );
     });
     it('can add two amounts', () => {
       // 'add() result is wrong'
-      expect(Amount.add(arbitraryExpectedAmount, arbitraryDeltaAmount)).toBe(
+      expect(addAmount(arbitraryExpectedAmount, arbitraryDeltaAmount)).toBe(
         arbitraryExpectedAmountPlusDelta,
       );
     });
@@ -87,22 +87,22 @@ describe('Amount', () => {
 
   describe('reduce', () => {
     it('cannot reduce amounts not number', () => {
-      expect(() => Amount.reduce('Not a number', '1000000000000000000')).toThrowError(
+      expect(() => reduceAmount('Not a number', '1000000000000000000')).toThrowError(
         'amount must represent a positive integer',
       );
 
-      expect(() => Amount.reduce('1000000000000000000', 'Not a number')).toThrowError(
+      expect(() => reduceAmount('1000000000000000000', 'Not a number')).toThrowError(
         'delta must represent a positive integer',
       );
     });
     it('can reduce two amounts', () => {
       // 'reduce() result is wrong'
-      expect(Amount.reduce(arbitraryExpectedAmount, arbitraryDeltaAmount)).toBe(
+      expect(reduceAmount(arbitraryExpectedAmount, arbitraryDeltaAmount)).toBe(
         arbitraryExpectedAmountMinusDelta,
       );
     });
     it('cannot reduce lower zero', () => {
-      expect(() => Amount.reduce(arbitraryDeltaAmount, arbitraryExpectedAmount)).toThrowError(
+      expect(() => reduceAmount(arbitraryDeltaAmount, arbitraryExpectedAmount)).toThrowError(
         'result of reduce is not valid',
       );
     });
diff --git a/packages/utils/test/bignumber.test.ts b/packages/utils/test/bignumber.test.ts
index 73135f12b9..1b2a9c907b 100644
--- a/packages/utils/test/bignumber.test.ts
+++ b/packages/utils/test/bignumber.test.ts
@@ -1,26 +1,26 @@
 import { BigNumber } from '@ethersproject/bignumber';
-import Utils from '../src';
+import { maxBigNumber, minBigNumber } from '../src';
 
 describe('min', () => {
   it('returns the min of 2 big numbers', () => {
-    expect(Utils.min(1, 2)).toMatchObject(BigNumber.from(1));
-    expect(Utils.min(2, 1)).toMatchObject(BigNumber.from(1));
+    expect(minBigNumber(1, 2)).toMatchObject(BigNumber.from(1));
+    expect(minBigNumber(2, 1)).toMatchObject(BigNumber.from(1));
   });
 
   it('supports 0', () => {
-    expect(Utils.min(1, 0)).toMatchObject(BigNumber.from(0));
-    expect(Utils.min(0, 1)).toMatchObject(BigNumber.from(0));
+    expect(minBigNumber(1, 0)).toMatchObject(BigNumber.from(0));
+    expect(minBigNumber(0, 1)).toMatchObject(BigNumber.from(0));
   });
 });
 
 describe('max', () => {
   it('returns the max of 2 big numbers', () => {
-    expect(Utils.max(1, 2)).toMatchObject(BigNumber.from(2));
-    expect(Utils.max(2, 1)).toMatchObject(BigNumber.from(2));
+    expect(maxBigNumber(1, 2)).toMatchObject(BigNumber.from(2));
+    expect(maxBigNumber(2, 1)).toMatchObject(BigNumber.from(2));
   });
 
   it('supports 0', () => {
-    expect(Utils.max(1, 0)).toMatchObject(BigNumber.from(1));
-    expect(Utils.max(0, 1)).toMatchObject(BigNumber.from(1));
+    expect(maxBigNumber(1, 0)).toMatchObject(BigNumber.from(1));
+    expect(maxBigNumber(0, 1)).toMatchObject(BigNumber.from(1));
   });
 });
diff --git a/packages/utils/test/cached-thottle.test.ts b/packages/utils/test/cached-thottle.test.ts
index 59ca968b01..fed1d7b67f 100644
--- a/packages/utils/test/cached-thottle.test.ts
+++ b/packages/utils/test/cached-thottle.test.ts
@@ -1,6 +1,6 @@
-import cachedThrottle from '../src/cached-throttle';
-
 /* eslint-disable no-magic-numbers */
+import { cachedThrottle } from '../src';
+
 describe('Cached Throttle', () => {
   it('throttles a function', async () => {
     jest.useFakeTimers('modern');
diff --git a/packages/utils/test/crypto.test.ts b/packages/utils/test/crypto.test.ts
index 085020ffee..4647b33e23 100644
--- a/packages/utils/test/crypto.test.ts
+++ b/packages/utils/test/crypto.test.ts
@@ -1,8 +1,14 @@
 import { MultiFormatTypes } from '@requestnetwork/types';
-import crypto from '../src/crypto';
+import {
+  generate32BufferKey,
+  generate8randomBytes,
+  last20bytesOfNormalizedKeccak256Hash,
+  normalize,
+  normalizeKeccak256Hash,
+} from '../src';
 
 /* eslint-disable @typescript-eslint/no-unused-expressions */
-describe('Utils.crypto', () => {
+describe('Utils/crypto', () => {
   it('can normalizeKeccak256Hash', () => {
     const arbitraryObject = {
       param1: 'valC',
@@ -10,7 +16,7 @@ describe('Utils.crypto', () => {
       param3: 'valA',
     };
     // 'normalizeKeccak256Hash(arbitraryObject) error'
-    expect(crypto.normalizeKeccak256Hash(arbitraryObject)).toEqual({
+    expect(normalizeKeccak256Hash(arbitraryObject)).toEqual({
       type: MultiFormatTypes.HashTypes.TYPE.KECCAK256,
       value: '0xaf91330fe78ccde898f10a39d6088568e24275a6cfbe9e80f4c2f42a4308f907',
     });
@@ -31,12 +37,12 @@ describe('Utils.crypto', () => {
     };
     /* eslint-enable  */
     // 'normalizeKeccak256Hash(arbitraryObject) error'
-    expect(crypto.normalizeKeccak256Hash(arbitraryObject)).toEqual({
+    expect(normalizeKeccak256Hash(arbitraryObject)).toEqual({
       type: MultiFormatTypes.HashTypes.TYPE.KECCAK256,
       value: '0xaf91330fe78ccde898f10a39d6088568e24275a6cfbe9e80f4c2f42a4308f907',
     });
     // 'normalizeKeccak256Hash(arbitraryObjectSame) error'
-    expect(crypto.normalizeKeccak256Hash(arbitraryObjectSame)).toEqual({
+    expect(normalizeKeccak256Hash(arbitraryObjectSame)).toEqual({
       type: MultiFormatTypes.HashTypes.TYPE.KECCAK256,
       value: '0xaf91330fe78ccde898f10a39d6088568e24275a6cfbe9e80f4c2f42a4308f907',
     });
@@ -71,27 +77,27 @@ describe('Utils.crypto', () => {
     };
     /* eslint-enable  */
     // 'normalizeKeccak256Hash(arbitraryObject) error'
-    expect(crypto.normalizeKeccak256Hash(arbitraryObject)).toEqual({
+    expect(normalizeKeccak256Hash(arbitraryObject)).toEqual({
       type: MultiFormatTypes.HashTypes.TYPE.KECCAK256,
       value: '0x7c36b5b8c7c5e787838a8ad5b083f3c9326bf364aa9e35691140f15c9a94f786',
     });
     // 'normalizeKeccak256Hash(arbitraryObjectSame) error'
-    expect(crypto.normalizeKeccak256Hash(arbitraryObjectSame)).toEqual({
+    expect(normalizeKeccak256Hash(arbitraryObjectSame)).toEqual({
       type: MultiFormatTypes.HashTypes.TYPE.KECCAK256,
       value: '0x7c36b5b8c7c5e787838a8ad5b083f3c9326bf364aa9e35691140f15c9a94f786',
     });
   });
 
   it('can normalize integer, null, string, undefined', () => {
-    expect(crypto.normalize('TesT')).toBe('"test"');
+    expect(normalize('TesT')).toBe('"test"');
     // eslint-disable-next-line no-magic-numbers
-    expect(crypto.normalize(12345)).toBe('12345');
-    expect(crypto.normalize(null)).toBe('null');
-    expect(crypto.normalize(undefined)).toBe('undefined');
+    expect(normalize(12345)).toBe('12345');
+    expect(normalize(null)).toBe('null');
+    expect(normalize(undefined)).toBe('undefined');
   });
 
   it('can generate32BufferKey()', async () => {
-    const randomKey = await crypto.generate32BufferKey();
+    const randomKey = await generate32BufferKey();
     // 'random32Bytes() error'
     expect(Buffer.from(randomKey, 'base64').length).toBe(32);
   });
@@ -102,7 +108,7 @@ describe('Utils.crypto', () => {
       param2: 'valB',
       param3: 'valA',
     };
-    expect(crypto.last20bytesOfNormalizedKeccak256Hash(arbitraryObject)).toEqual(
+    expect(last20bytesOfNormalizedKeccak256Hash(arbitraryObject)).toEqual(
       '0xd6088568e24275a6cfbe9e80f4c2f42a4308f907',
     );
   });
@@ -113,7 +119,7 @@ describe('Utils.crypto', () => {
     it('generates a 16 characters long string', async () => {
       // Do it 20 times because it's random. It's ok, it takes a few milliseconds
       for (let i = 0; i < 100; i++) {
-        expect((await crypto.generate8randomBytes()).length).toBe(16);
+        expect((await generate8randomBytes()).length).toBe(16);
       }
     });
 
@@ -123,13 +129,13 @@ describe('Utils.crypto', () => {
 
       // Do it 20 times because it's random. It's ok, it takes a few milliseconds
       for (let i = 0; i < 100; i++) {
-        expect(eightHexRegex.test(await crypto.generate8randomBytes())).toBe(true);
+        expect(eightHexRegex.test(await generate8randomBytes())).toBe(true);
       }
     });
 
     it('generates unique strings', async () => {
-      const first = await crypto.generate8randomBytes();
-      const second = await crypto.generate8randomBytes();
+      const first = await generate8randomBytes();
+      const second = await generate8randomBytes();
       expect(first).not.toBe(second);
     });
   });
diff --git a/packages/utils/test/crypto/crypto-wrapper.test.ts b/packages/utils/test/crypto/crypto-wrapper.test.ts
index 80c63d3259..d794d39ec9 100644
--- a/packages/utils/test/crypto/crypto-wrapper.test.ts
+++ b/packages/utils/test/crypto/crypto-wrapper.test.ts
@@ -1,14 +1,20 @@
-import CryptoWrapper from '../../src/crypto/crypto-wrapper';
-import utils from '../../src/utils';
+import {
+  decryptWithAes256cbc,
+  decryptWithAes256gcm,
+  encryptWithAes256cbc,
+  encryptWithAes256gcm,
+  random32Bytes,
+  unique,
+} from '../../src';
 
 const anyData = 'this is any data!';
 const arbitraryKey = '12345678901234567890123456789012';
 
 /* eslint-disable @typescript-eslint/no-unused-expressions */
-describe('Utils.cryptoWrapper', () => {
+describe('Utils/cryptoWrapper', () => {
   describe('random32Bytes', () => {
     it('can create a 32 bytes buffer', async () => {
-      const randomBytes = await CryptoWrapper.random32Bytes();
+      const randomBytes = await random32Bytes();
       // 'random32Bytes() error'
       expect(Buffer.isBuffer(randomBytes)).toBe(true);
       // eslint-disable-next-line no-magic-numbers
@@ -18,16 +24,16 @@ describe('Utils.cryptoWrapper', () => {
 
     it('can create 1000 buffers with no duplicates random32Bytes()', async () => {
       // eslint-disable-next-line no-magic-numbers
-      const promises = new Array(1000).fill('').map(async () => CryptoWrapper.random32Bytes());
+      const promises = new Array(1000).fill('').map(async () => random32Bytes());
       const randomBytes1000 = await Promise.all(promises);
       // 'randomBytes gives duplicate'
-      expect(utils.unique(randomBytes1000).duplicates.length).toBe(0);
+      expect(unique(randomBytes1000).duplicates.length).toBe(0);
     });
   });
 
   describe('encryptWithAes256cbc', () => {
     it('can encrypt with the aes256-cbc algorithm', async () => {
-      const encrypted = await CryptoWrapper.encryptWithAes256cbc(
+      const encrypted = await encryptWithAes256cbc(
         Buffer.from(anyData, 'utf8'),
         Buffer.from(arbitraryKey, 'utf8'),
       );
@@ -37,15 +43,15 @@ describe('Utils.cryptoWrapper', () => {
       expect(encrypted.length).toBe(48);
 
       // 'decrypt() error'
-      expect(
-        await CryptoWrapper.decryptWithAes256cbc(encrypted, Buffer.from(arbitraryKey, 'utf8')),
-      ).toEqual(Buffer.from(anyData, 'utf8'));
+      expect(await decryptWithAes256cbc(encrypted, Buffer.from(arbitraryKey, 'utf8'))).toEqual(
+        Buffer.from(anyData, 'utf8'),
+      );
     });
   });
 
   describe('decryptWithAes256cbc', () => {
     it('can decrypt a message encrypted with the aes256-cbc algorithm', async () => {
-      const decrypted = await CryptoWrapper.decryptWithAes256cbc(
+      const decrypted = await decryptWithAes256cbc(
         Buffer.from('GAM/RiH/7R0MZC03cviYHQmCdH8VrBEAPAhSt2j+IH9ZNCZiut/JtZbVYmcslyWa', 'base64'),
         Buffer.from(arbitraryKey, 'utf8'),
       );
@@ -58,7 +64,7 @@ describe('Utils.cryptoWrapper', () => {
 
   describe('encryptWithAes256gcm', () => {
     it('can encrypt with the aes256-gcm algorithm', async () => {
-      const encrypted = await CryptoWrapper.encryptWithAes256gcm(
+      const encrypted = await encryptWithAes256gcm(
         Buffer.from(anyData, 'utf8'),
         Buffer.from(arbitraryKey, 'utf8'),
       );
@@ -67,14 +73,14 @@ describe('Utils.cryptoWrapper', () => {
       // 'encryptWithAes256gcm() error'
       expect(encrypted.length).toBe(49);
       // 'decrypt() error'
-      expect(
-        await CryptoWrapper.decryptWithAes256gcm(encrypted, Buffer.from(arbitraryKey, 'utf8')),
-      ).toEqual(Buffer.from(anyData, 'utf8'));
+      expect(await decryptWithAes256gcm(encrypted, Buffer.from(arbitraryKey, 'utf8'))).toEqual(
+        Buffer.from(anyData, 'utf8'),
+      );
     });
   });
   describe('decryptWithAes256gcm', () => {
     it('can decrypt a message encrypted with the aes256-gcm algorithm', async () => {
-      const decrypted = await CryptoWrapper.decryptWithAes256gcm(
+      const decrypted = await decryptWithAes256gcm(
         Buffer.from(
           'TTu/6w1cLS6ToK68ILt56eJ/dJGGbo+z/IwGLEg0WfD/naOONpInlrzQ2Zv1vYL+Vg==',
           'base64',
diff --git a/packages/utils/test/crypto/ec-utils.test.ts b/packages/utils/test/crypto/ec-utils.test.ts
index 2b0c9f50d6..41d68b4916 100644
--- a/packages/utils/test/crypto/ec-utils.test.ts
+++ b/packages/utils/test/crypto/ec-utils.test.ts
@@ -1,4 +1,11 @@
-import ecUtils from '../../src/crypto/ec-utils';
+import {
+  ecDecrypt,
+  ecEncrypt,
+  ecRecover,
+  ecSign,
+  getAddressFromPrivateKey,
+  getAddressFromPublicKey,
+} from '../../src';
 
 const rawId = {
   address: '0x818B6337657A23F58581715Fc610577292e521D0',
@@ -14,22 +21,22 @@ const rawId = {
 const anyData = 'this is any data!';
 
 /* eslint-disable @typescript-eslint/no-unused-expressions */
-describe('Utils.ecUtils', () => {
+describe('Utils/EcUtils', () => {
   describe('getAddressFromPrivateKey', () => {
     it('can get Address From PrivateKey', () => {
-      const identity = ecUtils.getAddressFromPrivateKey(rawId.privateKey);
+      const identity = getAddressFromPrivateKey(rawId.privateKey);
       // 'getAddressFromPrivateKey() error'
       expect(identity).toBe(rawId.address);
     });
     it('cannot get Address From PrivateKey if the private key is wrong', () => {
       // 'getAddressFromPrivateKey() error'
-      expect(() => ecUtils.getAddressFromPrivateKey('aa')).toThrowError(
+      expect(() => getAddressFromPrivateKey('aa')).toThrowError(
         'The private key must be a string representing 32 bytes',
       );
     });
     it('can get an address from a private key without 0x', () => {
       expect(
-        ecUtils.getAddressFromPrivateKey(
+        getAddressFromPrivateKey(
           'af16c10a33bd8c2a0d55551080c3eb248ab727e5ff17d052c95f9d92b7e6528e',
         ),
       ).toBe('0xe011e28aBAa005223a2d4AEfFD5c2fF8D7B5291c');
@@ -38,13 +45,13 @@ describe('Utils.ecUtils', () => {
 
   describe('getAddressFromPublicKey', () => {
     it('can get Address From Public Key', () => {
-      const identity = ecUtils.getAddressFromPublicKey(rawId.publicKey);
+      const identity = getAddressFromPublicKey(rawId.publicKey);
       // 'getAddressFromPublicKey() error'
       expect(identity).toBe(rawId.address);
     });
     it('cannot get Address From Public Key if the Public key is wrong', () => {
       // 'getAddressFromPrivateKey() error'
-      expect(() => ecUtils.getAddressFromPublicKey('aa')).toThrowError(
+      expect(() => getAddressFromPublicKey('aa')).toThrowError(
         'The public key must be a string representing 64 bytes',
       );
     });
@@ -52,7 +59,7 @@ describe('Utils.ecUtils', () => {
 
   describe('sign', () => {
     it('can sign', () => {
-      const signature = ecUtils.sign(
+      const signature = ecSign(
         rawId.privateKey,
         '0xfd6201dabdd4d7177f7c3baba47c5533b12f0a8127ab5d8c71d831fa4df2b19f',
       );
@@ -64,14 +71,14 @@ describe('Utils.ecUtils', () => {
     it('cannot signs if the private key is wrong', () => {
       // 'sign() error'
       expect(() =>
-        ecUtils.sign('aa', '0xfd6201dabdd4d7177f7c3baba47c5533b12f0a8127ab5d8c71d831fa4df2b19f'),
+        ecSign('aa', '0xfd6201dabdd4d7177f7c3baba47c5533b12f0a8127ab5d8c71d831fa4df2b19f'),
       ).toThrowError('The private key must be a string representing 32 bytes');
     });
   });
 
-  describe('recover', () => {
+  describe('ecRecover', () => {
     it('can recover address from a signature', () => {
-      const id = ecUtils.recover(
+      const id = ecRecover(
         '0xdf4d49c7c01e00a970378e5a400dd4168aed6c43a1c510b124026467c78a3566048549c6ab5e0f618e2939c518e9fbe52e07836d4cb07fa44186fa3ffe3b3b981b',
         '0xfd6201dabdd4d7177f7c3baba47c5533b12f0a8127ab5d8c71d831fa4df2b19f',
       );
@@ -81,25 +88,22 @@ describe('Utils.ecUtils', () => {
     it('cannot recover address from signature if signature is not well formatted', () => {
       // 'sign() error'
       expect(() =>
-        ecUtils.recover(
-          '0xaa',
-          '0xfd6201dabdd4d7177f7c3baba47c5533b12f0a8127ab5d8c71d831fa4df2b19f',
-        ),
+        ecRecover('0xaa', '0xfd6201dabdd4d7177f7c3baba47c5533b12f0a8127ab5d8c71d831fa4df2b19f'),
       ).toThrowError('The signature must be a string representing 66 bytes');
     });
   });
 
   describe('encrypt', () => {
     it('can encrypt', async () => {
-      const encryptedData = await ecUtils.encrypt(rawId.publicKey, anyData);
+      const encryptedData = await ecEncrypt(rawId.publicKey, anyData);
       // 'encrypt() error'
       expect(encryptedData.length).toBe(226);
       // 'decrypt() error'
-      expect(await ecUtils.decrypt(rawId.privateKey, encryptedData)).toBe(anyData);
+      expect(await ecDecrypt(rawId.privateKey, encryptedData)).toBe(anyData);
     });
 
     it('can encrypt with other public key formats', async () => {
-      const encryptedData = await ecUtils.encrypt(
+      const encryptedData = await ecEncrypt(
         '0396212fc129c2f78771218b2e93da7a5aac63490a42bb41b97848c39c14fe65cd',
         anyData,
       );
@@ -107,7 +111,7 @@ describe('Utils.ecUtils', () => {
     });
 
     it('cannot encrypt data with a wrong public key', async () => {
-      await expect(ecUtils.encrypt('cf4a', anyData)).rejects.toThrowError(
+      await expect(ecEncrypt('cf4a', anyData)).rejects.toThrowError(
         'The public key must be a string representing 64 bytes',
       );
     });
@@ -115,7 +119,7 @@ describe('Utils.ecUtils', () => {
 
   describe('decrypt', () => {
     it('can decrypt', async () => {
-      const data = await ecUtils.decrypt(
+      const data = await ecDecrypt(
         rawId.privateKey,
         '307bac038efaa5bf8a0ac8db53fd4de8024a0c0baf37283a9e6671589eba18edc12b3915ff0df66e6ffad862440228a65ead99e3320e50aa90008961e3d68acc35b314e98020e3280bf4ce4258419dbb775185e60b43e7b88038a776a9322ff7cb3e886b2d92060cff2951ef3beedcc70a',
       );
@@ -125,7 +129,7 @@ describe('Utils.ecUtils', () => {
 
     it('cannot decrypt data with a wrong private key', async () => {
       await expect(
-        ecUtils.decrypt(
+        ecDecrypt(
           '0xaa',
           '307bac038efaa5bf8a0ac8db53fd4de8024a0c0baf37283a9e6671589eba18edc12b3915ff0df66e6ffad862440228a65ead99e3320e50aa90008961e3d68acc35b314e98020e3280bf4ce4258419dbb775185e60b43e7b88038a776a9322ff7cb3e886b2d92060cff2951ef3beedcc70a',
         ),
@@ -133,14 +137,14 @@ describe('Utils.ecUtils', () => {
     });
 
     it('cannot decrypt data with a wrong encrypted data: public key too short', async () => {
-      await expect(ecUtils.decrypt(rawId.privateKey, 'aa')).rejects.toThrowError(
+      await expect(ecDecrypt(rawId.privateKey, 'aa')).rejects.toThrowError(
         'The encrypted data is not well formatted',
       );
     });
 
     it('cannot decrypt data with a wrong encrypted data: public key not parsable', async () => {
       await expect(
-        ecUtils.decrypt(
+        ecDecrypt(
           rawId.privateKey,
           'e50aa90008961e3d68acc35b314e98020e3280bf4ce4258419dbb775185e60b43e7b88038a776a9322ff7cb3e886b2d92060cff2951ef3beedcc7',
         ),
@@ -149,7 +153,7 @@ describe('Utils.ecUtils', () => {
 
     it('cannot decrypt data with a wrong encrypted data: bad MAC', async () => {
       await expect(
-        ecUtils.decrypt(
+        ecDecrypt(
           rawId.privateKey,
           '307bac038efaa5bf8a0ac8db53fd4de8024a0c0baf37283a9e6671589eba18edc12b3915ff0df66e6ffad862440228a65ead99e3320e50aa90008961e3d68acc35b314e98020e3280bf4ce4258419dbb775185e60b43e7b88038a776a9322ff7cb3e886b2d92060cff2951ef3beedcc7',
         ),
@@ -158,15 +162,15 @@ describe('Utils.ecUtils', () => {
   });
 
   it('can encrypt()', async () => {
-    const encryptedData = await ecUtils.encrypt(rawId.publicKey, anyData);
+    const encryptedData = await ecEncrypt(rawId.publicKey, anyData);
     // 'encrypt() error'
     expect(encryptedData.length).toBe(226);
     // 'decrypt() error'
-    expect(await ecUtils.decrypt(rawId.privateKey, encryptedData)).toBe(anyData);
+    expect(await ecDecrypt(rawId.privateKey, encryptedData)).toBe(anyData);
   });
 
   it('can decrypt()', async () => {
-    const data = await ecUtils.decrypt(
+    const data = await ecDecrypt(
       rawId.privateKey,
       '307bac038efaa5bf8a0ac8db53fd4de8024a0c0baf37283a9e6671589eba18edc12b3915ff0df66e6ffad862440228a65ead99e3320e50aa90008961e3d68acc35b314e98020e3280bf4ce4258419dbb775185e60b43e7b88038a776a9322ff7cb3e886b2d92060cff2951ef3beedcc70a',
     );
diff --git a/packages/utils/test/encryption.test.ts b/packages/utils/test/encryption.test.ts
index 696496c911..dd6bfaaa14 100644
--- a/packages/utils/test/encryption.test.ts
+++ b/packages/utils/test/encryption.test.ts
@@ -1,5 +1,5 @@
 import { EncryptionTypes, IdentityTypes } from '@requestnetwork/types';
-import Encryption from '../src/encryption';
+import { getIdentityFromEncryptionParams, encrypt, decrypt } from '../src';
 
 const otherIdRaw = {
   address: '0x818B6337657A23F58581715Fc610577292e521D0',
@@ -39,7 +39,7 @@ const data = {
 describe('Encryption', () => {
   describe('getIdentityFromEncryptionParams', () => {
     it('can getIdentityFromEncryptionParams()', () => {
-      const identity = Encryption.getIdentityFromEncryptionParams(otherIdRaw.encryptionParams);
+      const identity = getIdentityFromEncryptionParams(otherIdRaw.encryptionParams);
       // 'getIdentityFromEncryptionParams() error'
       expect(identity).toEqual(otherIdRaw.identity);
     });
@@ -49,7 +49,7 @@ describe('Encryption', () => {
         method: 'notECIES',
         publicKey: otherIdRaw.publicKey,
       };
-      expect(() => Encryption.getIdentityFromEncryptionParams(params)).toThrowError(
+      expect(() => getIdentityFromEncryptionParams(params)).toThrowError(
         'encryptionParams.method not supported',
       );
     });
@@ -57,46 +57,37 @@ describe('Encryption', () => {
 
   describe('encrypt', () => {
     it('can encrypt with ECIES', async () => {
-      const encryptedData = await Encryption.encrypt(
-        JSON.stringify(data),
-        otherIdRaw.encryptionParams,
-      );
+      const encryptedData = await encrypt(JSON.stringify(data), otherIdRaw.encryptionParams);
       // 'encrypt() error'
       expect(encryptedData.value.length).toBe(258);
       // 'encrypt() error'
       expect(encryptedData.type).toBe(EncryptionTypes.METHOD.ECIES);
       // 'decrypt() error'
-      expect(await Encryption.decrypt(encryptedData, otherIdRaw.decryptionParams)).toEqual(
+      expect(await decrypt(encryptedData, otherIdRaw.decryptionParams)).toEqual(
         JSON.stringify(data),
       );
     });
 
     it('can encrypt with AES256-cbc', async () => {
-      const encryptedData = await Encryption.encrypt(
-        JSON.stringify(data),
-        arbitraryAES256cbcEncryptionParams,
-      );
+      const encryptedData = await encrypt(JSON.stringify(data), arbitraryAES256cbcEncryptionParams);
       // 'encrypt() error'
       expect(encryptedData.value.length).toBe(88);
       // 'encrypt() error'
       expect(encryptedData.type).toBe(EncryptionTypes.METHOD.AES256_CBC);
       // 'decrypt() error'
-      expect(await Encryption.decrypt(encryptedData, arbitraryAES256cbcEncryptionParams)).toEqual(
+      expect(await decrypt(encryptedData, arbitraryAES256cbcEncryptionParams)).toEqual(
         JSON.stringify(data),
       );
     });
 
     it('can encrypt with AES256-gcm', async () => {
-      const encryptedData = await Encryption.encrypt(
-        JSON.stringify(data),
-        arbitraryAES256gcmEncryptionParams,
-      );
+      const encryptedData = await encrypt(JSON.stringify(data), arbitraryAES256gcmEncryptionParams);
       // 'encrypt() error'
       expect(encryptedData.value.length).toBe(100);
       // 'encrypt() error'
       expect(encryptedData.type).toBe(EncryptionTypes.METHOD.AES256_GCM);
       // 'decrypt() error'
-      expect(await Encryption.decrypt(encryptedData, arbitraryAES256gcmEncryptionParams)).toEqual(
+      expect(await decrypt(encryptedData, arbitraryAES256gcmEncryptionParams)).toEqual(
         JSON.stringify(data),
       );
     });
@@ -107,7 +98,7 @@ describe('Encryption', () => {
         publicKey: otherIdRaw.publicKey,
       };
 
-      await expect(Encryption.encrypt(JSON.stringify(data), params)).rejects.toThrowError(
+      await expect(encrypt(JSON.stringify(data), params)).rejects.toThrowError(
         'encryptionParams.method not supported',
       );
     });
@@ -115,7 +106,7 @@ describe('Encryption', () => {
 
   describe('decrypt', () => {
     it('can decrypt encrypted data', async () => {
-      const dataDecrypted = await Encryption.decrypt(
+      const dataDecrypted = await decrypt(
         {
           type: EncryptionTypes.METHOD.ECIES,
           value:
@@ -129,7 +120,7 @@ describe('Encryption', () => {
 
     it('cannot decrypt with an encryption method not supported', async () => {
       await expect(
-        Encryption.decrypt(
+        decrypt(
           {
             type: 'not supported' as any,
             value:
@@ -142,7 +133,7 @@ describe('Encryption', () => {
 
     it('cannot decrypt with the wrong decryption method', async () => {
       await expect(
-        Encryption.decrypt(
+        decrypt(
           {
             type: EncryptionTypes.METHOD.ECIES,
             value: 'c9a9',
@@ -152,7 +143,7 @@ describe('Encryption', () => {
       ).rejects.toThrowError('decryptionParams.method should be ecies');
 
       await expect(
-        Encryption.decrypt(
+        decrypt(
           {
             type: EncryptionTypes.METHOD.AES256_CBC,
             value: 'c9a9',
@@ -162,7 +153,7 @@ describe('Encryption', () => {
       ).rejects.toThrowError('decryptionParams.method should be aes256-cbc');
 
       await expect(
-        Encryption.decrypt(
+        decrypt(
           {
             type: EncryptionTypes.METHOD.AES256_GCM,
             value: 'c9a9',
diff --git a/packages/utils/test/identity.test.ts b/packages/utils/test/identity.test.ts
index 9d06a0b750..17462f1eae 100644
--- a/packages/utils/test/identity.test.ts
+++ b/packages/utils/test/identity.test.ts
@@ -1,16 +1,16 @@
 import { IdentityTypes } from '@requestnetwork/types';
-import Identity from '../src/identity';
+import { areEqualIdentities, normalizeIdentityValue } from '../src';
 
 /* eslint-disable @typescript-eslint/no-unused-expressions */
 describe('Identity', () => {
   it('can normalizeIdentityValue()', () => {
     // 'normalizeIdentityValue("") error'
-    expect(Identity.normalizeIdentityValue('0xe241d3757DAd0Ef86D0FCc5fE90e20f955743eD5')).toBe(
+    expect(normalizeIdentityValue('0xe241d3757DAd0Ef86D0FCc5fE90e20f955743eD5')).toBe(
       '0xe241d3757dad0ef86d0fcc5fe90e20f955743ed5',
     );
   });
 
-  it('can areEqual() two identities', () => {
+  it('can areEqualIdentities() two identities', () => {
     const id1 = {
       type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
       value: '0xe241d3757DAd0Ef86D0FCc5fE90e20f955743eD5',
@@ -19,11 +19,11 @@ describe('Identity', () => {
       type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
       value: '0xe241d3757DAd0Ef86D0FCc5fE90e20f955743eD5',
     };
-    // 'areEqual() error'
-    expect(Identity.areEqual(id1, id2)).toBe(true);
+    // 'areEqualIdentities() error'
+    expect(areEqualIdentities(id1, id2)).toBe(true);
   });
 
-  it('can areEqual() two identities with different cases', () => {
+  it('can areEqualIdentities() two identities with different cases', () => {
     const id1 = {
       type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
       value: '0xe241d3757DAd0Ef86D0FCc5fE90e20f955743eD5',
@@ -32,11 +32,11 @@ describe('Identity', () => {
       type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
       value: '0xe241d3757dad0ef86d0fcc5fe90e20f955743ed5',
     };
-    // 'areEqual() error'
-    expect(Identity.areEqual(id1, id2)).toBe(true);
+    // 'areEqualIdentities() error'
+    expect(areEqualIdentities(id1, id2)).toBe(true);
   });
 
-  it('cannot areEqual() two identities with differents values', () => {
+  it('cannot areEqualIdentities() two identities with differents values', () => {
     const id1 = {
       type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
       value: '0xe241d3757DAd0Ef86D0FCc5fE90e20f955743eD5',
@@ -45,7 +45,7 @@ describe('Identity', () => {
       type: IdentityTypes.TYPE.ETHEREUM_ADDRESS,
       value: '0xFFFFFFFFFFFFFFf86D0FCc5fE90e20f955743eD5',
     };
-    // 'areEqual() error'
-    expect(Identity.areEqual(id1, id2)).toBe(false);
+    // 'areEqualIdentities() error'
+    expect(areEqualIdentities(id1, id2)).toBe(false);
   });
 });
diff --git a/packages/utils/test/retry.test.ts b/packages/utils/test/retry.test.ts
index 5667699472..5d143033b4 100644
--- a/packages/utils/test/retry.test.ts
+++ b/packages/utils/test/retry.test.ts
@@ -1,4 +1,4 @@
-import retry from '../src/retry';
+import { retry } from '../src';
 
 class TestClass {
   private value = 'private';
diff --git a/packages/utils/test/signature.test.ts b/packages/utils/test/signature.test.ts
index e6a2f008e3..bbf3c166b6 100644
--- a/packages/utils/test/signature.test.ts
+++ b/packages/utils/test/signature.test.ts
@@ -1,6 +1,10 @@
 import { IdentityTypes, SignatureTypes } from '@requestnetwork/types';
-import Crypto from '../src/crypto';
-import Signature from '../src/signature';
+import {
+  getIdentityFromSignatureParams,
+  normalizeKeccak256Hash,
+  recoverSigner,
+  sign,
+} from '../src';
 
 const otherIdRaw = {
   address: '0x818B6337657A23F58581715Fc610577292e521D0',
@@ -31,7 +35,7 @@ const dataDiffCase = {
 describe('Signature', () => {
   describe('getIdentityFromSignatureParams', () => {
     it('can getIdentityFromSignatureParams()', () => {
-      const identity = Signature.getIdentityFromSignatureParams({
+      const identity = getIdentityFromSignatureParams({
         method: SignatureTypes.METHOD.ECDSA,
         privateKey: otherIdRaw.privateKey,
       });
@@ -44,7 +48,7 @@ describe('Signature', () => {
         method: 'notECDSA',
         privateKey: otherIdRaw.privateKey,
       };
-      expect(() => Signature.getIdentityFromSignatureParams(params)).toThrowError(
+      expect(() => getIdentityFromSignatureParams(params)).toThrowError(
         'signatureParams.method not supported',
       );
     });
@@ -52,7 +56,7 @@ describe('Signature', () => {
 
   describe('sign', () => {
     it('can sign() with ECDSA', () => {
-      const signature = Signature.sign(data, {
+      const signature = sign(data, {
         method: SignatureTypes.METHOD.ECDSA,
         privateKey: otherIdRaw.privateKey,
       });
@@ -68,7 +72,7 @@ describe('Signature', () => {
     });
 
     it('can sign() with ECDSA_ETHEREUM', () => {
-      const signature = Signature.sign(data, {
+      const signature = sign(data, {
         method: SignatureTypes.METHOD.ECDSA_ETHEREUM,
         privateKey: otherIdRaw.privateKey,
       });
@@ -84,7 +88,7 @@ describe('Signature', () => {
     });
 
     it('can sign() with different case', () => {
-      const signature = Signature.sign(dataDiffCase, {
+      const signature = sign(dataDiffCase, {
         method: SignatureTypes.METHOD.ECDSA,
         privateKey: otherIdRaw.privateKey,
       });
@@ -104,15 +108,15 @@ describe('Signature', () => {
         method: 'notECDSA',
         privateKey: otherIdRaw.privateKey,
       };
-      expect(() => Signature.sign(Crypto.normalizeKeccak256Hash(data), params)).toThrowError(
+      expect(() => sign(normalizeKeccak256Hash(data), params)).toThrowError(
         'signatureParams.method not supported',
       );
     });
   });
 
   describe('recover', () => {
-    it('can recover() ECDSA signature', () => {
-      const id = Signature.recover({
+    it('can recoverSigner()  ECDSA signature', () => {
+      const id = recoverSigner({
         data,
         signature: {
           method: SignatureTypes.METHOD.ECDSA,
@@ -120,12 +124,12 @@ describe('Signature', () => {
             '0x801f4240516509c28660f096830d52e8523e2136d557d65728e39f3ea37b72bb3f20accff461cabe3515431d0e6c468d4631540b7c6f9c29acfa7c9231781a3c1c',
         },
       });
-      // 'recover() error'
+      // 'recoverSigner()  error'
       expect(id).toEqual(otherIdRaw.identity);
     });
 
-    it('can recover() ECDSA_ETHEREUM signature', () => {
-      const id = Signature.recover({
+    it('can recoverSigner()  ECDSA_ETHEREUM signature', () => {
+      const id = recoverSigner({
         data,
         signature: {
           method: SignatureTypes.METHOD.ECDSA_ETHEREUM,
@@ -133,14 +137,14 @@ describe('Signature', () => {
             '0x3fbc7ed9dfa003067f646749d4223def2a69df70371d4f15ec001bc1491cdee40558de1f31fdc7cc5d805a5c4080b54cda3430b29ab14f04e17a5b23fcd39b391b',
         },
       });
-      // 'recover() error'
+      // 'recoverSigner()  error'
       expect(id.value).toEqual(otherIdRaw.identity.value.toLowerCase());
-      // 'recover() error'
+      // 'recoverSigner()  error'
       expect(id.type).toEqual(otherIdRaw.identity.type);
     });
 
-    it('can recover() with different case', () => {
-      const id = Signature.recover({
+    it('can recoverSigner()  with different case', () => {
+      const id = recoverSigner({
         data: dataDiffCase,
         signature: {
           method: SignatureTypes.METHOD.ECDSA,
@@ -148,7 +152,7 @@ describe('Signature', () => {
             '0x801f4240516509c28660f096830d52e8523e2136d557d65728e39f3ea37b72bb3f20accff461cabe3515431d0e6c468d4631540b7c6f9c29acfa7c9231781a3c1c',
         },
       });
-      // 'recover() error'
+      // 'recoverSigner()  error'
       expect(id).toEqual(otherIdRaw.identity);
     });
 
@@ -157,7 +161,7 @@ describe('Signature', () => {
         method: 'notECDSA',
         value: '0x00000000000000000000',
       };
-      expect(() => Signature.recover({ data, signature: params })).toThrowError(
+      expect(() => recoverSigner({ data, signature: params })).toThrowError(
         'signatureParams.method not supported',
       );
     });
diff --git a/packages/utils/test/simple-logger.test.ts b/packages/utils/test/simple-logger.test.ts
index fcd2fd65ef..245026c054 100644
--- a/packages/utils/test/simple-logger.test.ts
+++ b/packages/utils/test/simple-logger.test.ts
@@ -1,5 +1,5 @@
 import { LogTypes } from '@requestnetwork/types';
-import SimpleLogger from '../src/simple-logger';
+import { SimpleLogger } from '../src';
 
 const LogLevel = LogTypes.LogLevel;
 
diff --git a/packages/utils/test/utils.test.ts b/packages/utils/test/utils.test.ts
index cda4f810e8..6177dedb78 100644
--- a/packages/utils/test/utils.test.ts
+++ b/packages/utils/test/utils.test.ts
@@ -1,4 +1,13 @@
-import Utils from '../src/utils';
+import {
+  deepCopy,
+  deepSort,
+  flatten2DimensionsArray,
+  getCurrentTimestampInSecond,
+  isString,
+  timeoutPromise,
+  unique,
+  uniqueByProperty,
+} from '../src';
 
 /* eslint-disable @typescript-eslint/no-unused-expressions */
 describe('Utils', () => {
@@ -37,7 +46,7 @@ describe('Utils', () => {
     };
     /* eslint-enable  */
     // 'deepSort(arbitraryObject) error'
-    expect(JSON.stringify(Utils.deepSort(arbitraryObjectNotSorted))).toBe(
+    expect(JSON.stringify(deepSort(arbitraryObjectNotSorted))).toBe(
       JSON.stringify(arbitraryObjectSorted),
     );
   });
@@ -55,7 +64,7 @@ describe('Utils', () => {
       },
       attribut3: 'valeurA',
     };
-    const arbitraryObjectDeepCopy = Utils.deepCopy(arbitraryObject);
+    const arbitraryObjectDeepCopy = deepCopy(arbitraryObject);
     // 'deepCopy(arbitraryObject) error'
     expect(arbitraryObjectDeepCopy).toEqual(arbitraryObject);
     arbitraryObjectDeepCopy.attribut1 = 'new value';
@@ -71,17 +80,17 @@ describe('Utils', () => {
 
   it('can return true if variable is String or string', () => {
     // 'istring("") error'
-    expect(Utils.isString('this is a string')).toBe(true);
+    expect(isString('this is a string')).toBe(true);
     // 'istring("") error'
-    expect(Utils.isString(String('this is a string'))).toBe(true);
+    expect(isString(String('this is a string'))).toBe(true);
   });
 
   it('cannot return true if variable is not a string', () => {
     /* eslint-disable no-magic-numbers */
     // 'istring("") error'
-    expect(Utils.isString(1234)).toBe(false);
+    expect(isString(1234)).toBe(false);
     // 'istring("") error'
-    expect(Utils.isString({ var: 'plop' })).toBe(false);
+    expect(isString({ var: 'plop' })).toBe(false);
   });
 
   it('getCurrentTimestampInSecond()', () => {
@@ -89,7 +98,7 @@ describe('Utils', () => {
 
     const time = Math.floor(Date.now() / 1000);
     // 'getCurrentTimestampInSecond() error'
-    expect(Utils.getCurrentTimestampInSecond()).toBe(time);
+    expect(getCurrentTimestampInSecond()).toBe(time);
 
     // Cleanup
     jest.useRealTimers();
@@ -106,7 +115,7 @@ describe('Utils', () => {
 
       /* eslint-disable  */
       // 'unique(arbitraryArray) error'
-      expect(Utils.unique(arbitraryArray)).toEqual({
+      expect(unique(arbitraryArray)).toEqual({
         uniqueItems: [
           { att1: 'value1', att2: 'value2' },
           { att3: 'value3', att4: 'value4' },
@@ -128,7 +137,7 @@ describe('Utils', () => {
 
       /* eslint-disable  */
       // 'unique(arbitraryArray) error'
-      expect(Utils.unique(arbitraryArray)).toEqual({
+      expect(unique(arbitraryArray)).toEqual({
         uniqueItems: [
           { att1: 'value1', att2: 'value2' },
           { att1: 'value1', Att2: 'Value2' },
@@ -148,7 +157,7 @@ describe('Utils', () => {
 
       /* eslint-disable  */
       // 'unique(arbitraryArray) error'
-      expect(Utils.unique(arbitraryArray)).toEqual({
+      expect(unique(arbitraryArray)).toEqual({
         uniqueItems: [
           { att1: 'value1', att2: 'value2' },
           { att1: 'value1', Att2: 'Value2' },
@@ -171,7 +180,7 @@ describe('Utils', () => {
 
       /* eslint-disable  */
       // 'uniqueByProperty(arbitraryArray) error'
-      expect(Utils.uniqueByProperty(arbitraryArray, 'att1')).toEqual({
+      expect(uniqueByProperty(arbitraryArray, 'att1')).toEqual({
         uniqueItems: [
           { att1: 'value1', att2: 'value2' },
           { att1: 'value3', att4: 'value4' },
@@ -193,7 +202,7 @@ describe('Utils', () => {
 
       /* eslint-disable  */
       // 'unique(arbitraryArray) error'
-      expect(Utils.uniqueByProperty(arbitraryArray, 'att1')).toEqual({
+      expect(uniqueByProperty(arbitraryArray, 'att1')).toEqual({
         uniqueItems: [
           { att1: 'value1', att2: 'value2' },
           { att1: 'value12', Att2: 'Value2' },
@@ -208,28 +217,28 @@ describe('Utils', () => {
   describe('flatten2DimensionsArray', () => {
     it('can flatten2DimensionsArray() 1 dimension array', () => {
       const arbitraryArray: any[] = [1, 2, 3, 4, 5];
-      const flattenArray = Utils.flatten2DimensionsArray(arbitraryArray);
+      const flattenArray = flatten2DimensionsArray(arbitraryArray);
       // 'flatten2DimensionsArray(twoDimensionsArray) error'
       expect(flattenArray).toEqual([1, 2, 3, 4, 5]);
     });
 
     it('can flatten2DimensionsArray() 3 dimensions array', () => {
       const arbitraryArray: any[] = [[1, 2], [3], [4, [5, 6]]];
-      const flattenArray = Utils.flatten2DimensionsArray(arbitraryArray);
+      const flattenArray = flatten2DimensionsArray(arbitraryArray);
       // 'flatten2DimensionsArray(twoDimensionsArray) error'
       expect(flattenArray).toEqual([1, 2, 3, 4, [5, 6]]);
     });
 
     it('can flatten2DimensionsArray() empty array', () => {
       const emptyArray: any[] = [];
-      const flattenArray = Utils.flatten2DimensionsArray(emptyArray);
+      const flattenArray = flatten2DimensionsArray(emptyArray);
       // 'flatten2DimensionsArray(twoDimensionsArray) error'
       expect(flattenArray).toEqual([]);
     });
 
     it('can flatten2DimensionsArray() two dimensionals array', () => {
       const twoDimensionsArray = [[1, 2], [3], [4, 5]];
-      const flattenArray = Utils.flatten2DimensionsArray(twoDimensionsArray);
+      const flattenArray = flatten2DimensionsArray(twoDimensionsArray);
       // 'flatten2DimensionsArray(twoDimensionsArray) error'
       expect(flattenArray).toEqual([1, 2, 3, 4, 5]);
     });
@@ -251,7 +260,7 @@ describe('Utils', () => {
       expect.assertions(3);
 
       const promise = new Promise(() => {});
-      Utils.timeoutPromise(promise, 1000, errorMessage)
+      timeoutPromise(promise, 1000, errorMessage)
         .then(() => {
           fail('timeoutPromise should not be fulfilled');
         })
diff --git a/packages/web3-signature/src/web3-signature-provider.ts b/packages/web3-signature/src/web3-signature-provider.ts
index 64949eddc3..3527b631ba 100644
--- a/packages/web3-signature/src/web3-signature-provider.ts
+++ b/packages/web3-signature/src/web3-signature-provider.ts
@@ -1,6 +1,6 @@
 import { IdentityTypes, SignatureProviderTypes, SignatureTypes } from '@requestnetwork/types';
 
-import Utils from '@requestnetwork/utils';
+import { areEqualIdentities, normalize, recoverSigner } from '@requestnetwork/utils';
 
 import { providers } from 'ethers';
 
@@ -41,7 +41,7 @@ export default class Web3SignatureProvider implements SignatureProviderTypes.ISi
       throw Error(`Identity type not supported ${signer.type}`);
     }
 
-    const normalizedData = Utils.crypto.normalize(data);
+    const normalizedData = normalize(data);
     const signerEthers = this.web3Provider.getSigner(signer.value);
 
     let signatureValue;
@@ -82,7 +82,7 @@ export default class Web3SignatureProvider implements SignatureProviderTypes.ISi
         value,
       },
     };
-    if (Utils.identity.areEqual(Utils.signature.recover(signedData), signer)) {
+    if (areEqualIdentities(recoverSigner(signedData), signer)) {
       return signedData;
     }
     return null;
diff --git a/packages/web3-signature/test/web3-signature-provider.test.ts b/packages/web3-signature/test/web3-signature-provider.test.ts
index e34f38f833..280e75d2ad 100644
--- a/packages/web3-signature/test/web3-signature-provider.test.ts
+++ b/packages/web3-signature/test/web3-signature-provider.test.ts
@@ -2,7 +2,7 @@ import { IdentityTypes, SignatureTypes } from '@requestnetwork/types';
 
 import Web3SignatureProvider from '../src/web3-signature-provider';
 
-import Utils from '@requestnetwork/utils';
+import { ecSign, normalizeKeccak256Hash } from '@requestnetwork/utils';
 
 const id1Raw = {
   identity: {
@@ -16,11 +16,8 @@ const id1Raw = {
 };
 
 const data = { What: 'ever', the: 'data', are: true };
-const hashData = Utils.crypto.normalizeKeccak256Hash(data).value;
-const signatureValueExpected = Utils.crypto.EcUtils.sign(
-  id1Raw.signatureParams.privateKey,
-  hashData,
-);
+const hashData = normalizeKeccak256Hash(data).value;
+const signatureValueExpected = ecSign(id1Raw.signatureParams.privateKey, hashData);
 
 const mockWeb3: any = {
   getSigner: jest.fn().mockImplementation(() => ({