sidetiq.gemspec in sidetiq-0.4.0 vs sidetiq.gemspec in sidetiq-0.4.1

@@ -17,13 +17,12 @@
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]
   gem.extensions    = []
 
-  gem.add_dependency 'sidekiq',   '~> 2.14.0'
+  gem.add_dependency 'sidekiq',   '~> 2.15.0'
   gem.add_dependency 'celluloid', '>= 0.14.1'
   gem.add_dependency 'ice_cube',  '~> 0.11.0'
-  gem.add_dependency 'json'
 
   gem.add_development_dependency 'rake'
   gem.add_development_dependency 'sinatra'
   gem.add_development_dependency 'mocha'
   gem.add_development_dependency 'rack-test'