omniauth-multi-provider.gemspec in omniauth-multi-provider-0.2.0 vs omniauth-multi-provider.gemspec in omniauth-multi-provider-0.2.1

@@ -25,9 +25,11 @@
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.bindir        = 'bin'
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
+  spec.required_ruby_version = '>= 2.1'
+
   spec.add_dependency 'omniauth'
 
   spec.add_development_dependency 'bundler', '~> 1.12'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rspec', '~> 3.4'