diff --git a/Gemfile b/Gemfile
index 1b2cf233..678f8fba 100644
--- a/Gemfile
+++ b/Gemfile
@@ -23,7 +23,7 @@ group :test do
   gem "nokogiri", "~> 1.7"
   gem "rspec"
   gem "rspec-mocks"
-  gem "rubocop", "~> 1.0"
+  gem "rubocop", "~> 1.8.1"
   gem "rubocop-minitest"
   gem "rubocop-performance"
   gem "rubocop-rake"