diff --git a/用-Supervisor-运行-Shadowsocks.md b/用-Supervisor-运行-Shadowsocks.md
index 049e4ae..2fee8db 100644
--- a/用-Supervisor-运行-Shadowsocks.md
+++ b/用-Supervisor-运行-Shadowsocks.md
@@ -56,36 +56,4 @@ Debian
 如果修改了 Supervisor 的配置文件 `/etc/supervisor/*`，
 可以更新 supervisor 配置：
 
-    supervisorctl update
-
-CentOS
-------
-
-运行
-
-```
-yum install python-setuptools supervisor
-easy_install pip
-pip install shadowsocks
-```
-编辑 `/etc/supervisord.conf`， 添加
-
-```
-[program:shadowsocks]
-command=ssserver -c /etc/shadowsocks.json
-autorestart=true
-user=nobody
-```
-
-运行
-
-```
-sudo chkconfig --add supervisord
-sudo chkconfig supervisord on
-service supervisord start
-supervisorctl reload
-```
-
-编辑 `/etc/sysconfig/iptables`，添加
-
-    -A INPUT -m state --state NEW -m tcp -p tcp --dport your_server_port -j ACCEPT
\ No newline at end of file
+    supervisorctl update
\ No newline at end of file