diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index be67731a233f03b7df2dd2d42bea1e98f4306644..dfce6aa9b89987f57a4ee1eec1e911622502e3f6 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -27,7 +27,7 @@ to use.
 
 ```bash
 
-npm i -g commitizen cz-customizable
+npm install -g commitizen@2.8.6 cz-customizable@4.0.0
 ```
 
 Below is an example of Commitizen in action. It replaces your usual `git commit` command