salsify_rubocop.gemspec in salsify_rubocop-0.78.1 vs salsify_rubocop.gemspec in salsify_rubocop-0.85.0

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'salsify_rubocop/version'
 
 Gem::Specification.new do |spec|
@@ -26,14 +28,16 @@
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
+  spec.required_ruby_version = '>= 2.4'
+
   spec.add_development_dependency 'bundler', '~> 2.0'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rspec', '~> 3.0'
 
-  spec.add_runtime_dependency 'rubocop', '~> 0.78.0'
+  spec.add_runtime_dependency 'rubocop', '~> 0.85.0'
   spec.add_runtime_dependency 'rubocop-performance', '~> 1.5.0'
   spec.add_runtime_dependency 'rubocop-rails', '~> 2.4.0'
   spec.add_runtime_dependency 'rubocop-rspec', '~> 1.37.0'
 end