Gemfile in rouge-2.2.0 vs Gemfile in rouge-2.2.1

@@ -1,8 +1,11 @@
 source 'http://rubygems.org'
 
 gemspec
 
+gem 'bundler', '~> 1.15'
+gem 'rake', '~> 12.0'
+
 gem 'minitest', '~> 4.0'
 gem 'wrong'
 
 gem 'rubocop', '~> 0.49.1' if RUBY_VERSION >= '2.0.0'