grom.gemspec in grom-0.5.0 vs grom.gemspec in grom-0.5.1

@@ -28,8 +28,8 @@
 
   # the below are test dependencies
   spec.add_development_dependency 'bundler', '~> 1.13'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rspec', '~> 3.0'
-  spec.add_development_dependency 'rubocop', '~> 0.47'
+  spec.add_development_dependency 'rubocop', '~> 0.51'
   spec.add_development_dependency 'simplecov', '~> 0.13'
 end