diff --git a/README.md b/README.md
index c9815f8af..9596bec68 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,8 @@ $ npm set ca null
 
 Now you can navigate to [http://localhost:4873/](http://localhost:4873/) where your local packages will be listed and can be searched.
 
+> Warning: Verdaccio current is not support PM2's cluster mode, run it with cluster mode may cause unknown behavior
+
 #### Beta
 
 If you are an adventurous developer you can use and install the latest beta version, this is a non stable version, I'd recommend only use for testing purporses.
diff --git a/wiki/cli.md b/wiki/cli.md
index 1f7d33b85..9382a7142 100644
--- a/wiki/cli.md
+++ b/wiki/cli.md
@@ -18,6 +18,8 @@ or if you use `yarn`
 $ yarn add global verdaccio
 ```
 
+> Warning: Verdaccio current is not support PM2's cluster mode, run it with cluster mode may cause unknown behavior
+
 ## Commands
 
 ```bash