Gemfile in hanny-0.2.1 vs Gemfile in hanny-0.2.2

@@ -1,14 +1,20 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 # Specify your gem's dependencies in hanny.gemspec
 gemspec
 
 gem 'bundler', '~> 2.0'
 gem 'rake', '~> 12.0'
+gem 'rbs', '~> 1.2'
 gem 'rspec', '~> 3.0'
+gem 'rubocop', '~> 1.35'
+gem 'rubocop-performance', '~> 1.14'
+gem 'rubocop-rake', '~> 0.6.0'
+gem 'rubocop-rspec', '~> 2.12'
 gem 'simplecov', '~> 0.19'
 gem 'simplecov-lcov', '~> 0.8'
-gem 'rbs', '~> 1.2'
 gem 'steep', '~> 0.44'