diff --git a/Gemfile b/Gemfile
index fa9f520..a224465 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ source 'https://rubygems.org'
 gemspec
 
 gem 'rake', '~> 13.0'
-gem 'rubocop', '~> 1.63.0'
+gem 'rubocop', '~> 1.64.0'
 
 group :test do
   gem 'rspec', '~> 3.6'