diff --git a/Dockerfile b/Dockerfile
index d6cd5df..4666d3c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,4 +24,4 @@ WORKDIR /app
 
 CMD bash docker-entrypoint.sh
 
-EXPOSE 22
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+EXPOSE 2200
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diff --git a/README.md b/README.md
index 6b205ab..c81c01a 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,6 @@
 sudo docker run --device=/dev/ppp \
                 --cap-add=NET_ADMIN \
                 --restart=always \
-                -p 55355:22 pinlin/gectunnel
+                -p 65356:2200 pinlin/gectunnel
 ```
 
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index bf08bb0..4153644 100644
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -6,6 +6,6 @@ sleep 3s
 
 while true
 do
-    ssh -o "ExitOnForwardFailure yes" -NL 22:192.168.80.240:22 localhost
+    ssh -o "ExitOnForwardFailure yes" -NL 2200:192.168.80.240:22 localhost
     sleep 1s
 done
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