diff --git a/Library/.rubocop.yml b/Library/.rubocop.yml
index 500e82d7ff..bad79cf04a 100644
--- a/Library/.rubocop.yml
+++ b/Library/.rubocop.yml
@@ -1,6 +1,9 @@
 # TODO: Try getting more rules in sync.
 
-require: ./Homebrew/rubocops.rb
+require:
+  - ./Homebrew/rubocops.rb
+  - rubocop-performance
+  - rubocop-rails
 
 inherit_mode:
   merge: