diff --git a/README.md b/README.md
index 313266b..7dbce2e 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ Ruby on Rails application serving as backend for turnie.re
 ## Installation
 ```bash
 # install dependencies
+$ bundle config set with development
 $ bundle install
 # run migrations
 $ rails db:migrate