source 'https://rubygems.org' gem 'json', '~> 1.4', :require => nil gem 'oj', '~> 1.0', :require => nil, :platforms => [:ruby, :mswin, :mingw] gem 'yajl-ruby', '~> 1.0', :require => nil, :platforms => [:ruby, :mswin, :mingw] gemspec