diff --git a/src/main/java/com/sczx/pay/service/impl/AlipayServiceImpl.java b/src/main/java/com/sczx/pay/service/impl/AlipayServiceImpl.java
index 95d40fe..8c0ff48 100644
--- a/src/main/java/com/sczx/pay/service/impl/AlipayServiceImpl.java
+++ b/src/main/java/com/sczx/pay/service/impl/AlipayServiceImpl.java
@@ -165,7 +165,7 @@ public class AlipayServiceImpl implements AlipayService {
             model.setAuthConfirmMode("NOT_COMPLETE");
 
             // 设置产品码
-            model.setProductCode("JSAPI_PAY");
+            model.setProductCode("PREAUTH_PAY");
 
 
             request.setBizModel(model);