Gemfile in cards_lib-0.2.2 vs Gemfile in cards_lib-0.2.3

@@ -5,5 +5,8 @@
 gem "codeclimate-test-reporter", group: :test, require: nil
 group :development do
   gem "guard"
   gem "guard-minitest"
 end
+if Gem::Dependency.new('', ">= 2.4.0").match?('', RUBY_VERSION)
+  gem "json", git: 'https://github.com/flori/json', branch: 'v1.8'
+end