Gemfile in sec_id-3.0.0 vs Gemfile in sec_id-4.0.0

@@ -4,5 +4,17 @@
 
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 # Specify your gem's dependencies in sec_id.gemspec
 gemspec
+
+# Specify your gem's development dependencies below
+gem 'rake', '>= 13'
+
+gem 'rspec', '~> 3.9'
+gem 'rspec_junit_formatter'
+
+gem 'rubocop', '~> 1.64'
+gem 'rubocop-rspec', '~> 3.0'
+
+gem 'simplecov', '~> 0.22', require: false
+gem 'simplecov_json_formatter', require: false