diff --git a/src/transaction/transaction.service.ts b/src/transaction/transaction.service.ts
index 250f2aa..c4744f4 100644
--- a/src/transaction/transaction.service.ts
+++ b/src/transaction/transaction.service.ts
@@ -1164,7 +1164,7 @@ export class TransactionService {
     } else {
       const response = callback['message'];
       const responseBaru = response.split(' ');
-      dataTransaction.seri_number = responseBaru[10];
+      dataTransaction.seri_number = responseBaru[9];
     }
     dataTransaction.callback_json = callback;