cancancan.gemspec in cancancan-2.1.2 vs cancancan.gemspec in cancancan-2.1.3

@@ -16,10 +16,10 @@
   s.license     = 'MIT'
 
   s.files       = `git ls-files lib init.rb cancancan.gemspec`.split($INPUT_RECORD_SEPARATOR)
   s.require_paths = ['lib']
 
-  s.required_ruby_version = '>= 2.0.0'
+  s.required_ruby_version = '>= 2.2.0'
 
   s.add_development_dependency 'bundler', '~> 1.3'
   s.add_development_dependency 'rubocop', '~> 0.48.1'
   s.add_development_dependency 'rake', '~> 10.1', '>= 10.1.1'
   s.add_development_dependency 'rspec', '~> 3.2', '>= 3.2.0'