diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index e6a37f870f..01ee6d3685 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -120,7 +120,8 @@ createdb changelog_test --username=postgres
 
 # 💜 CONFIGURE APP 💜
 # Install deps
-mix deps.get
+mix deps.get --only dev
+mix deps.get --only test
 # Prepare dev database
 mix ecto.setup