diff --git a/README.md b/README.md
index fcdeba5..91f158e 100644
--- a/README.md
+++ b/README.md
@@ -63,8 +63,6 @@ gostun
 Usage: gostun [options]
   -e    Enable logging functionality (default true)
   -h    Display help information
-  -protocol string
-        Specify transmission protocol: udp, tcp, or tls (default "udp")
   -server string
         Specify STUN server address (default "stun.voipgate.com:3478")
   -timeout int
@@ -94,8 +92,6 @@ go get github.com/oneclickvirt/gostun@v0.0.5-20250722144757
 
 ## 感谢[Thanks]
 
-https://www.rfc-editor.org/info/rfc5389
-
 https://datatracker.ietf.org/doc/html/rfc3489
 
 https://datatracker.ietf.org/doc/html/rfc4787