appraise "rails_4_1" do
  version = "~> 4.1.8"
  gem "activesupport", version
  gem "actionpack", version
  gem "activerecord", version
  gem "railties", version
end

appraise "rails_4_2" do
  version = "~> 4.2.0"
  gem "activesupport", version
  gem "actionpack", version
  gem "activerecord", version
  gem "railties", version
end

appraise "rails_5_0" do
  version = "~> 5.0.0"
  gem "activesupport", version
  gem "actionpack", version
  gem "activerecord", version
  gem "railties", version
end

appraise "rails_5_1" do
  version = "~> 5.1.0"
  gem "activesupport", version
  gem "actionpack", version
  gem "activerecord", version
  gem "railties", version
end