Gemfile in cuba-api-0.4.0 vs Gemfile in cuba-api-0.5.0

@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
 gemspec
 
-gem  'copyright-header', '~> 1.0', :platform => :mri
+gem  'copyright-header', '~> 1.0', :platform => :mri, :group => :copyright