diff --git a/Gemfile b/Gemfile
index e1f36589..24f8935a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ source 'https://rubygems.org'
 gemspec
 
 gem 'coveralls', require: false
-gem 'rubocop', '1.9.0', require: false
+gem 'rubocop', '1.9.1', require: false
 gem 'rubocop-performance', require: false
 gem 'rubocop-rake', require: false
 gem 'rubocop-rspec', require: false