diff --git i/.rubocop.yml w/.rubocop.yml
index 1369eedefc..9335038ac7 100644
--- i/.rubocop.yml
+++ w/.rubocop.yml
@@ -1,5 +1,6 @@
 require:
   - rubocop-rails
+  - "./lib/rubocop-cookpad.rb"
 
 AllCops:
   TargetRailsVersion: 6.0