diff --git a/Gemfile b/Gemfile
index 118bdd8..8d662e4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ group :test do
   gem 'coveralls', require: false
   gem 'foodcritic', '~> 16.0'
   gem 'rake'
-  gem 'rubocop', '~> 1.63.0'
+  gem 'rubocop', '~> 1.64.0'
   gem 'simplecov', '~> 0.10'
 end