diff --git a/pay-java-wx/src/main/java/com/egzosn/pay/wx/v3/utils/WxConst.java b/pay-java-wx/src/main/java/com/egzosn/pay/wx/v3/utils/WxConst.java
index 06d43f406468a36e39e3072b8a08a2679bf20ebf..76e8929d5e889e1a537a00ebcf6a3baf8c702e04 100644
--- a/pay-java-wx/src/main/java/com/egzosn/pay/wx/v3/utils/WxConst.java
+++ b/pay-java-wx/src/main/java/com/egzosn/pay/wx/v3/utils/WxConst.java
@@ -17,7 +17,7 @@ public final class WxConst {
     /**
      * 微信默认请求地址
      */
-    public static final String URI = "https://api.mch.weixin.qq.com";
+    public static final String URI = "https://api.mch.weixin.qq.com/";
     /**
      * 证书别名
      */