Gemfile in flipper-0.7.5 vs Gemfile in flipper-0.8.0

@@ -12,9 +12,10 @@
 gem 'statsd-ruby', '~> 1.2.1'
 gem 'rspec', '~> 3.0'
 gem 'rack-test', '~> 0.6.3'
 gem 'sqlite3', '~> 1.3.11'
 gem 'rails', "~> #{ENV["RAILS_VERSION"] || '4.2.5'}"
+gem 'minitest', '~> 5.8.0'
 
 # for active support tests in test/ and only needed for ruby 2.2.x
 gem 'test-unit', '~> 3.0'
 
 group(:guard) do