diff --git a/readme.md b/readme.md
index 9742582..dcf064b 100644
--- a/readme.md
+++ b/readme.md
@@ -8,7 +8,7 @@ Visualise your routes in pretty format.
 # Installation
 
 ```bash
-composer require garygreen/pretty-routes
+composer require garygreen/pretty-routes --dev
 ```
 
 If your using autodiscovery in Laravel, it should just work.