appraise "activerecord-4-0" do
  gem "activerecord", "~> 4.0.13"
end

appraise "activerecord-4-1" do
  gem "activerecord", "~> 4.1.15"
end

appraise "activerecord-4-2" do
  gem "activerecord", "~> 4.2.6"
end

appraise "activerecord-5-0" do
  gem "activerecord", "~> 5.0.0.rc1"
end