diff --git a/src/transaction/transaction.service.ts b/src/transaction/transaction.service.ts
index c13654d..a1a3923 100644
--- a/src/transaction/transaction.service.ts
+++ b/src/transaction/transaction.service.ts
@@ -598,17 +598,10 @@ export class TransactionService {
       }
 
       //HIT API SUPPLIER
-      let hexString = uuid.v4();
-
-      // remove decoration
-      hexString = hexString.replace(/-/g, '');
-
-      let base64String = Buffer.from(hexString, 'hex').toString('base64');
-
       const trxId = Array(6)
           .fill(null)
           .map(() => {
-            return Math.round(Math.random() * 16).toString(16) + base64String;
+            return Math.round(Math.random() * 16).toString(16);
           })
           .join('');