diff --git a/README.md b/README.md
index bbab6ca..5ada939 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ The ever fast websocket tunnel built on top of [lightws](https://github.com/zeph
 
 - Server side receives [tcp/ws/tls/wss] then sends tcp.
 
-- Compatible with shadowsocks [SIP003 plugin](https://shadowsocks.org/en/wiki/Plugin.html).
+- Compatible with shadowsocks [SIP003 plugin](https://shadowsocks.org/guide/sip003.html).
 
 ```text
  tcp                           ws/tls/wss                           tcp