Gemfile in cells-rails-0.0.9 vs Gemfile in cells-rails-0.1.0

@@ -3,13 +3,13 @@
 # Specify your gem's dependencies in cells-rails.gemspec
 gemspec
 
 # gem "my_engine", path: "engines/my_engine"
 
-# gem 'sass-rails', "~> 4.0.3"#, "  ~> 3.1.0"
+gem 'sass-rails', "~> 6.0.0"
 # gem "sprockets", "~> 2.12.3"
 
-rails_version = ENV['RAILS_VERSION'] || '5.0'
+rails_version = ENV.fetch('RAILS_VERSION','5.0')
 gem "railties", "~> #{rails_version}"
 gem "activerecord", "~> #{rails_version}"
 
 gem "my_engine", path: "test/rails#{rails_version}/engines/my_engine"