Gemfile in cliutils-2.1.4 vs Gemfile in cliutils-2.2.0

@@ -1,6 +1,13 @@
 source 'https://rubygems.org'
 
+gem 'simplecov', require: false
 gem 'coveralls', require: false
+
+platforms :rbx do
+  gem 'racc'
+  gem 'rubysl', '~> 2.0'
+  gem 'psych'
+end
 
 # Specify your gem's dependencies in cliutils.gemspec
 gemspec