diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index e64644f..d879fde 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -25,7 +25,7 @@ We accept contributions via Pull Requests on [Github](https://github.com/thephpl
 ## Running Tests
 
 ``` bash
-$ phpunit
+$ composer test
 ```