diff --git a/moduleroot/Gemfile b/moduleroot/Gemfile
index 4915e487..88bc3544 100644
--- a/moduleroot/Gemfile
+++ b/moduleroot/Gemfile
@@ -9,7 +9,7 @@ group :test do
   gem 'rspec-puppet-facts'
   gem 'rspec'
   gem 'puppet-blacksmith'
-  gem 'rubocop'
+  gem 'rubocop', '0.33.0'
 end
 
 group :development do