diff --git a/practice/install-kubernetes-on-centos.md b/practice/install-kubernetes-on-centos.md
index de2fd593a..3aa235175 100644
--- a/practice/install-kubernetes-on-centos.md
+++ b/practice/install-kubernetes-on-centos.md
@@ -25,7 +25,7 @@
 ## 集群详情
 
 + OS：CentOS Linux release 7.3.1611 (Core)  3.10.0-514.16.1.el7.x86_64
-+ Kubernetes 1.6.0
++ Kubernetes 1.6.0+（最低的版本要求是1.6）
 + Docker  1.12.5（使用yum安装）
 + Etcd 3.1.5
 + Flannel 0.7.1 vxlan或者host-gw 网络