Rakefile in pheme-4.1.1 vs Rakefile in pheme-5.0.0

@@ -4,9 +4,11 @@
   puts 'You must `gem install bundler` and `bundle install` to run rake tasks'
 end
 
 require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'
+require 'rubocop/rake_task'
 
 RSpec::Core::RakeTask.new(:spec)
+RuboCop::RakeTask.new
 
-task default: :spec
+task default: %i[spec rubocop]