diff --git a/content/post/docker.md b/content/post/docker.md
index 9067cd2..6340aea 100644
--- a/content/post/docker.md
+++ b/content/post/docker.md
@@ -206,7 +206,7 @@ categories: ["container"]
     tar zxf docker-20.10.10.tgz
     mv docker/* /usr/bin/
     rm -rf docker/ docker-20.10.10.tgz
-    groupadd -g 10110 docker
+    addgroup -g 10110 docker
     ```
 
 - 创建 containerd 启动脚本 /etc/init.d/containerd