Gemfile in signed_form-0.1.2 vs Gemfile in signed_form-0.2.0

@@ -6,9 +6,11 @@
 rails_version = ENV['RAILS_VERSION'] || 'master'
 
 case rails_version
 when /master/
   gem "rails", github: "rails/rails"
+when /4-0-stable/
+  gem "rails", github: "rails/rails", branch: "4-0-stable"
 when /3-2-stable/
   gem "rails", github: "rails/rails", branch: "3-2-stable"
   gem "strong_parameters"
 when /3-1-stable/
   gem "rails", github: "rails/rails", branch: "3-1-stable"