diff --git a/rxr_gitea/docker-compose.yml b/rxr_gitea/docker-compose.yml
index 93582d6..3fffd7e 100644
--- a/rxr_gitea/docker-compose.yml
+++ b/rxr_gitea/docker-compose.yml
@@ -17,7 +17,7 @@ services:
       - APP_NAME='Zengtudor's git'
       - DOMAIN=git.zziyu.cn
       - SSH_DOMAIN=git.zziyu.cn
-      - SSH_PORT=23
+      - SSH_PORT=0
     restart: always
     networks:
       - gitea