if RUBY_VERSION < '2.0' appraise '3.0' do gem 'rails', '~> 3.0.17' end appraise '3.1' do gem 'rails', '~> 3.1.8' gem 'jquery-rails' gem 'sass-rails' end end appraise '3.2' do gem 'rails', '~> 3.2.13' gem 'jquery-rails' gem 'sass-rails' end