diff --git a/Gemfile b/Gemfile
index 94732bf..af770bf 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ gem "minitest", "~> 5.11"
 gem "minitest-ci", "~> 3.4"
 gem "minitest-reporters", "~> 1.3"
 gem "rake", "~> 13.0"
-gem "rubocop", "1.56.2"
+gem "rubocop", "1.56.4"
 gem "rubocop-minitest", "0.32.2"
 gem "rubocop-packaging", "0.5.2"
 gem "rubocop-performance", "1.19.1"