appraise "rails-4.2" do gem "rails", "~> 4.2.0" gem "sqlite3", "~> 1.3.13" end appraise "rails-5.0" do gem "rails", "~> 5.0.0" gem "sqlite3", "~> 1.3.13" end appraise "rails-5.1" do gem "rails", "~> 5.1.0" gem "sqlite3", "~> 1.4.1" end appraise "rails-5.2" do gem "rails", "~> 5.2.0" gem "sqlite3", "~> 1.4.1" end