signed_xml.gemspec in signed_xml-1.2.0 vs signed_xml.gemspec in signed_xml-1.3.0

@@ -21,6 +21,7 @@
   gem.add_dependency "options"
 
   gem.add_development_dependency "coveralls"
   gem.add_development_dependency "rake"
   gem.add_development_dependency "rspec"
+  gem.add_development_dependency "rubocop"
 end