diff --git a/src/Gateways/Alipay.php b/src/Gateways/Alipay.php
index 49b0e24bd29b25ee6a53e28cda6416bdd1f3a5eb..7c69d833ff845b5d0b1b0c72d63f91a883948810 100644
--- a/src/Gateways/Alipay.php
+++ b/src/Gateways/Alipay.php
@@ -49,7 +49,7 @@ class Alipay implements GatewayApplicationInterface
     const URL = [
         self::MODE_NORMAL => 'https://openapi.alipay.com/gateway.do?charset=utf-8',
         self::MODE_SERVICE => 'https://openapi.alipay.com/gateway.do?charset=utf-8',
-        self::MODE_DEV => 'https://openapi.alipaydev.com/gateway.do?charset=utf-8',
+        self::MODE_DEV => 'https://openapi-sandbox.dl.alipaydev.com/gateway.do?charset=utf-8',
     ];
 
     /**