diff --git a/src/common/parse.js b/src/common/parse.js
index 01998f6d..4a439383 100644
--- a/src/common/parse.js
+++ b/src/common/parse.js
@@ -251,9 +251,9 @@ class ParseHelper {
    */
   static async fetchTransactions(symbol, type, address, skipCount, fetchCount) {
     const queryFrom = new Parse.Query(ParseTransaction);
-    queryFrom.equalTo('from', address);
+    queryFrom.equalTo('from', address.toLowerCase());
     const queryTo = new Parse.Query(ParseTransaction);
-    queryTo.equalTo('to', address);
+    queryTo.equalTo('to', address.toLowerCase());
     const query = Parse.Query.or(queryFrom, queryTo)
       .equalTo('type', type)
       .equalTo('symbol', symbol)
@@ -261,7 +261,7 @@ class ParseHelper {
     const results = await query.skip(skipCount).limit(fetchCount).find();
     const transactions = _.map(results, (item) => {
       const transaction = parseDataUtil.getTransaction(item);
-      const isSender = address === transaction.from;
+      const isSender = address.toLowerCase() === transaction.from.toLowerCase();
       return parseDataUtil.getTransactionViewData(transaction, isSender);
     });
     return transactions;
@@ -272,7 +272,7 @@ class ParseHelper {
    * @param {*} tokens
    */
   static async subscribeTransactions(tokens) {
-    const addresses = _.uniq(_.map(tokens, 'address'));
+    const addresses = (_.uniq(_.map(tokens, 'address'))).map((address) => address.toLowerCase());
     const queryFrom = new Parse.Query(ParseTransaction);
     queryFrom.containedIn('from', addresses);
     const queryTo = new Parse.Query(ParseTransaction);
diff --git a/src/common/wallet/walletManager.js b/src/common/wallet/walletManager.js
index f06967d9..17149545 100644
--- a/src/common/wallet/walletManager.js
+++ b/src/common/wallet/walletManager.js
@@ -165,7 +165,7 @@ class WalletManager {
 
     _.each(tokenInstances, (token) => {
       const newToken = token;
-      const matchedToken = _.find(updatedItems, (item) => item.address === token.address && item.symbol === token.symbol && item.type === token.type);
+      const matchedToken = _.find(updatedItems, (item) => item.address.toLowerCase() === token.address.toLowerCase() && item.symbol === token.symbol && item.type === token.type);
 
       if (matchedToken) {
         // update balance