appraise "2.1" do gem "capybara", "~> 2.1.0" end appraise "2.2" do gem "capybara", "~> 2.2.0" end appraise "2.3" do gem "capybara", "~> 2.3.0" end appraise "2.4" do gem "capybara", "~> 2.4.0" end