rubocop-rspec.gemspec in rubocop-rspec-1.32.0 vs rubocop-rspec.gemspec in rubocop-rspec-1.33.0

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 $LOAD_PATH.unshift File.expand_path('lib', __dir__)
 require 'rubocop/rspec/version'
 
 Gem::Specification.new do |spec|
   spec.name = 'rubocop-rspec'
@@ -17,10 +19,10 @@
   ]
   spec.licenses = ['MIT']
 
   spec.version = RuboCop::RSpec::Version::STRING
   spec.platform = Gem::Platform::RUBY
-  spec.required_ruby_version = '>= 2.2.0'
+  spec.required_ruby_version = '>= 2.3.0'
 
   spec.require_paths = ['lib']
   spec.files = Dir[
     '{config,lib,spec}/**/*',
     '*.md',