appraise "sprockets-3" do
  gem "sprockets", "3.0.0"
end

appraise "sprockets-2" do
  gem "sprockets", "2.3.3"
end

appraise "tilt-2" do
  gem "tilt", "2.0.1"
end

appraise "tilt-1" do
  gem "tilt", "1.4.1"
end