docker-api.gemspec in docker-api-1.11.0 vs docker-api.gemspec in docker-api-1.11.1

@@ -16,10 +16,11 @@
   gem.version       = Docker::VERSION
   gem.add_dependency 'excon', '>= 0.34.0'
   gem.add_dependency 'json'
   gem.add_dependency 'archive-tar-minitar'
   gem.add_development_dependency 'rake'
-  gem.add_development_dependency 'rspec'
+  gem.add_development_dependency 'rspec', '~> 3.0'
+  gem.add_development_dependency 'rspec-its'
   gem.add_development_dependency 'cane'
   gem.add_development_dependency 'pry'
   gem.add_development_dependency 'vcr', '>= 2.7.0'
   gem.add_development_dependency 'simplecov'
   gem.add_development_dependency 'webmock'