diff --git a/cn/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/mysql-deployment.yaml b/cn/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/mysql-deployment.yaml
index ce3eb1bf74..2253600de6 100644
--- a/cn/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/mysql-deployment.yaml
+++ b/cn/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/mysql-deployment.yaml
@@ -25,17 +25,13 @@ spec:
     requests:
       storage: 20Gi
 ---
-apiVersion: apps/v1beta2
+apiVersion: extensions/v1beta1
 kind: Deployment
 metadata:
   name: wordpress-mysql
   labels:
     app: wordpress
 spec:
-  selector:
-    matchLabels:
-      app: wordpress
-      tier: mysql
   strategy:
     type: Recreate
   template:
diff --git a/cn/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/wordpress-deployment.yaml b/cn/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/wordpress-deployment.yaml
index c354cdef88..e15edc5998 100644
--- a/cn/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/wordpress-deployment.yaml
+++ b/cn/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/wordpress-deployment.yaml
@@ -25,17 +25,13 @@ spec:
     requests:
       storage: 20Gi
 ---
-apiVersion: apps/v1beta2
+apiVersion: extensions/v1beta1
 kind: Deployment
 metadata:
   name: wordpress
   labels:
     app: wordpress
 spec:
-  selector:
-    matchLabels:
-      app: wordpress
-      tier: frontend
   strategy:
     type: Recreate
   template:
diff --git a/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/mysql-deployment.yaml b/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/mysql-deployment.yaml
index ce3eb1bf74..2253600de6 100644
--- a/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/mysql-deployment.yaml
+++ b/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/mysql-deployment.yaml
@@ -25,17 +25,13 @@ spec:
     requests:
       storage: 20Gi
 ---
-apiVersion: apps/v1beta2
+apiVersion: extensions/v1beta1
 kind: Deployment
 metadata:
   name: wordpress-mysql
   labels:
     app: wordpress
 spec:
-  selector:
-    matchLabels:
-      app: wordpress
-      tier: mysql
   strategy:
     type: Recreate
   template:
diff --git a/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/wordpress-deployment.yaml b/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/wordpress-deployment.yaml
index c354cdef88..e15edc5998 100644
--- a/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/wordpress-deployment.yaml
+++ b/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/wordpress-deployment.yaml
@@ -25,17 +25,13 @@ spec:
     requests:
       storage: 20Gi
 ---
-apiVersion: apps/v1beta2
+apiVersion: extensions/v1beta1
 kind: Deployment
 metadata:
   name: wordpress
   labels:
     app: wordpress
 spec:
-  selector:
-    matchLabels:
-      app: wordpress
-      tier: frontend
   strategy:
     type: Recreate
   template: