Gemfile in mpd_client-0.2.0 vs Gemfile in mpd_client-0.3.0

@@ -4,9 +4,10 @@
 
 # Specify your gem's dependencies in mpd_client.gemspec
 gemspec
 
 group :development, :test do
+  gem 'bundler'
   gem 'pry'
   gem 'rubocop'
   gem 'solargraph'
 end