diff --git a/mysql-wordpress-pd/README.md b/mysql-wordpress-pd/README.md
index 34d2fd1a..d4b915e5 100644
--- a/mysql-wordpress-pd/README.md
+++ b/mysql-wordpress-pd/README.md
@@ -109,7 +109,7 @@ spec:
     - resources:
         limits :
           cpu: 0.5
-      image: mysql
+      image: mysql:5.6
       name: mysql
       env:
         - name: MYSQL_ROOT_PASSWORD