diff --git a/extend/AliPayV2/AliPay.php b/extend/AliPayV2/AliPay.php
index 136fb56..23f48f4 100644
--- a/extend/AliPayV2/AliPay.php
+++ b/extend/AliPayV2/AliPay.php
@@ -23,7 +23,7 @@ class AliPay
      */
     public function __construct()
     {
-        $this->appCertPath = ADDON_PATH . 'epay/certs/appCertPublicKey_2021005162648430.crt';
+        $this->appCertPath = ADDON_PATH . 'epay/certs/appCertPublicKey_2021005189650627.crt';
         $this->alipayCertPath = ADDON_PATH . 'epay/certs/alipayCertPublicKey_RSA2.crt';
         $this->rootCertPath = ADDON_PATH . 'epay/certs/alipayRootCert.crt';