diff --git a/.rubocop.yml b/.rubocop.yml
index 8ab82ba..e72dadd 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -3,6 +3,9 @@ inherit_gem:
 
 AllCops:
   TargetRubyVersion: 2.3
+  Exclude:
+    - 'vendor/**/*'
+    - 'gemfiles/vendor/**/*'
 
 Style/FrozenStringLiteralComment:
   Enabled: true
diff --git a/.travis.yml b/.travis.yml
index 4827de5..a8ebe19 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,5 @@
 language: ruby
+cache: bundler
 sudo: false
 gemfile:
   - gemfiles/rails_4.2.gemfile
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 9dbf70c..7090433 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -8,6 +8,8 @@
 )
 
 SimpleCov.start do
+  add_filter 'benchmark'
+  add_filter 'gemfiles'
   add_filter 'spec'
 end