diff --git a/config/rubocop.yml b/config/rubocop.yml
index af82f0cb..9f3d5100 100644
--- a/config/rubocop.yml
+++ b/config/rubocop.yml
@@ -1,8 +1,11 @@
 AllCops:
   Includes:
     - '../**/*.rake'
+    - 'Gemfile'
+    - 'Gemfile.devtools'
   Excludes:
-    - '../vendor/**'
+    - '**/vendor/**'
+    - '**/benchmarks/**'
 
 # Avoid parameter lists longer than five parameters.
 ParameterLists: