diff --git a/README.md b/README.md
index f36dc07..7002ae7 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 项目致力于提供快速部署高可用`k8s`集群的工具, 同时也努力成为`k8s`实践、使用的参考书；基于二进制方式部署和利用`ansible-playbook`实现自动化；既提供一键安装脚本, 也可以根据`安装指南`分步执行安装各个组件。
 
 - **集群特性** `TLS`双向认证、`RBAC`授权、[多Master高可用](docs/setup/00-planning_and_overall_intro.md#ha-architecture)、支持`Network Policy`、备份恢复、[离线安装](docs/setup/offline_install.md)
-- **集群版本** kubernetes v1.15, v1.16, v1.17, v1.18
+- **集群版本** kubernetes v1.16, v1.17, v1.18, v1.19
 - **操作系统** CentOS/RedHat 7, Debian 9/10, Ubuntu 1604/1804
 - **运行时** docker 18.06.x-ce, 18.09.x, 19.03.x [containerd](docs/guide/containerd.md) 1.2.6
 - **网络** [calico](docs/setup/network-plugin/calico.md), [cilium](docs/setup/network-plugin/cilium.md), [flannel](docs/setup/network-plugin/flannel.md), [kube-ovn](docs/setup/network-plugin/kube-ovn.md), [kube-router](docs/setup/network-plugin/kube-router.md)
diff --git a/docs/release-notes/kubeasz-2.2.2.md b/docs/release-notes/kubeasz-2.2.2.md
index e46ad6f..d19577d 100644
--- a/docs/release-notes/kubeasz-2.2.2.md
+++ b/docs/release-notes/kubeasz-2.2.2.md
@@ -19,4 +19,4 @@ CHANGELOG:
 - 文档
   - Update kuboard.md #861
 - 其他
-  - 调整etcd备份文件名称 #902 #932
+  - 调整etcd备份文件 #902 #932 #933
diff --git a/manifests/dashboard/kubernetes-dashboard.yaml b/manifests/dashboard/kubernetes-dashboard.yaml
index af07c2b..8f5c199 100644
--- a/manifests/dashboard/kubernetes-dashboard.yaml
+++ b/manifests/dashboard/kubernetes-dashboard.yaml
@@ -189,7 +189,7 @@ spec:
     spec:
       containers:
         - name: kubernetes-dashboard
-          image: kubernetesui/dashboard:v2.0.1
+          image: kubernetesui/dashboard:v2.0.4
           ports:
             - containerPort: 8443
               protocol: TCP
@@ -290,6 +290,8 @@ spec:
             runAsUser: 1001
             runAsGroup: 2001
       serviceAccountName: kubernetes-dashboard
+      nodeSelector:
+        "kubernetes.io/os": linux
       # Comment the following tolerations if Dashboard must not be deployed on master
       tolerations:
         - key: node-role.kubernetes.io/master