u3d.gemspec in u3d-0.9.3 vs u3d.gemspec in u3d-0.9.4

@@ -1,6 +1,7 @@
 # coding: utf-8
+
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'u3d/version'
 
 Gem::Specification.new do |spec|
@@ -34,7 +35,8 @@
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.1.0"
   spec.add_development_dependency 'rspec_junit_formatter', '~> 0.2.3'
   spec.add_development_dependency "pry"
   spec.add_development_dependency "coveralls"
-  spec.add_development_dependency 'rubocop', '~> 0.44.0'
+  spec.add_development_dependency "github_changelog_generator"
+  spec.add_development_dependency 'rubocop', '~> 0.49.1'
 end