diff --git a/app/api/controller/PayController.php b/app/api/controller/PayController.php
index dc35889..1adce3d 100644
--- a/app/api/controller/PayController.php
+++ b/app/api/controller/PayController.php
@@ -39,7 +39,7 @@ class PayController extends BaseApiController
         Pay::config($config);
         $result  = Pay::wechat()->callback(Request()->post());
         if($result && $result->event_type=='TRANSACTION.SUCCESS'){
-            $ciphertext=$result->resource->ciphertext;
+            $ciphertext=$result->resource['ciphertext'];
             if ($ciphertext['trade_state'] === 'SUCCESS') {
                 $extra['transaction_id'] = $ciphertext['transaction_id'];
                 $attach = $ciphertext['attach'];