appraise "sidekiq-develop" do gem 'sidekiq', github: 'mperham/sidekiq' end appraise "sidekiq-2.17" do gem 'sidekiq', '2.17' end appraise "sidekiq-2.16" do gem "sidekiq", '2.16' end appraise "sidekiq-2.15" do gem "sidekiq", '2.15' end appraise "sidekiq-3.0" do gem "sidekiq", '3.0' end