diff --git a/webpay.md b/webpay.md
index 28d5b2c..9a68f44 100644
--- a/webpay.md
+++ b/webpay.md
@@ -45,7 +45,7 @@
 -----------------------------
 
 
-请参考[GumpTech服务端文档](http://123.59.74.8:81/document/gumptech-document/blob/master/doc/ServerDocument.md)
+请参考[GumpTech服务端文档](http://123.59.74.8:81/document/gumptech-document/blob/master/ServerDocument.md)