diff --git a/webui/src/config.ts b/webui/src/config.ts
index 6a2e8bb..c84e654 100644
--- a/webui/src/config.ts
+++ b/webui/src/config.ts
@@ -1,6 +1,6 @@
 import { type Chain } from 'viem'
 import { holesky, sepolia } from "wagmi/chains";
-//import { defineChain } from "viem";
+//import { defineChain } from 'viem';
 
 export interface ChainConfig {
 	VaultContractAddr: `0x${string}`;
@@ -18,6 +18,22 @@ export interface Config {
 	Chains: ChainConfig[];
 }
 
+const sepoliaWithCustomRPC = Object.assign({}, sepolia, {
+	rpcUrls: {
+		default: {
+			http: ['https://rpc.sepolia.ethpandaops.io'],
+		},
+	},
+});
+
+const holeskyWithCustomRPC = Object.assign({}, holesky, {
+	rpcUrls: {
+		default: {
+			http: ['https://rpc.holesky.ethpandaops.io'],
+		},
+	},
+});
+
 /*
 const now = Math.floor((new Date()).getTime() / 1000);
 const iteration = Math.floor(((now - 1638471600) / 604800));
@@ -61,7 +77,7 @@ const FundingVaultConfig: Config = {
 			VaultContractAddr: "0x610866c6089768dA95524bcc4cE7dB61eDa3931c",
 			TokenContractAddr: "0x97652A83CC29043fA9Be2781cc0038EBa70de911",
             TokenName: "HolETH",
-			Chain: holesky,
+			Chain: holeskyWithCustomRPC,
 			HumanNetworkName: "Holesky",
 			BlockExplorerUrl: "https://holesky.etherscan.io/",
 		},
@@ -69,7 +85,7 @@ const FundingVaultConfig: Config = {
 			VaultContractAddr: "0x610866c6089768dA95524bcc4cE7dB61eDa3931c",
             TokenContractAddr: "0x97652A83CC29043fA9Be2781cc0038EBa70de911",
             TokenName: "SepETH",
-			Chain: sepolia,
+			Chain: sepoliaWithCustomRPC,
 			HumanNetworkName: "Sepolia",
 			BlockExplorerUrl: "https://sepolia.etherscan.io/",
 		},
@@ -87,8 +103,8 @@ const FundingVaultConfig: Config = {
 };
 
 export var KnownChains = [
-	holesky,
-    sepolia,
+	holeskyWithCustomRPC,
+    sepoliaWithCustomRPC,
     //ephemery,
 ];