phantomjs.gemspec in phantomjs-1.9.8.0 vs phantomjs.gemspec in phantomjs-2.1.1.0

@@ -12,9 +12,12 @@
   gem.add_development_dependency 'poltergeist', '~> 1.5'
   gem.add_development_dependency 'capybara', '~> 2.4'
   gem.add_development_dependency 'rspec', "~> 2.99"
   gem.add_development_dependency 'simplecov'
   gem.add_development_dependency 'rake'
+  if RUBY_VERSION < '2'
+    gem.add_development_dependency "mime-types", "~> 2.6"
+  end
 
   gem.files         = `git ls-files`.split($\)
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.name          = "phantomjs"