purecss-sass.gemspec in purecss-sass-0.6.0 vs purecss-sass.gemspec in purecss-sass-0.6.1

@@ -17,11 +17,13 @@
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
+  spec.required_ruby_version = '>= 2.0.0'
+
   spec.add_runtime_dependency 'sass', '~> 3.3'
 
-  spec.add_development_dependency 'rspec', '~> 3.3'
-  spec.add_development_dependency 'compass', '~> 1.0.3'
-  spec.add_development_dependency 'rails', '~> 4.0'
+  spec.add_development_dependency 'railties', '~> 5.0'
+  spec.add_development_dependency 'rspec', '~> 3.5'
+  spec.add_development_dependency 'sprockets-rails', '~> 3.0'
 end