diff --git a/ssh/centos/Dockerfile b/ssh/centos/Dockerfile
index 1b14adb..2f7fee9 100644
--- a/ssh/centos/Dockerfile
+++ b/ssh/centos/Dockerfile
@@ -1,4 +1,4 @@
-FROM centos:centos7
+FROM centos:centos8
 
 # 安装软件包
 RUN yum install openssh-server net-tools passwd -y \