diff --git a/Gemfile b/Gemfile
index bec6dd7..3820807 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ gemspec
 gem "minitest", "~> 5.11"
 gem "minitest-reporters", "~> 1.3"
 gem "rake", "~> 13.0"
-gem "rubocop", "1.54.0"
+gem "rubocop", "1.56.4"
 gem "rubocop-minitest", "0.31.0"
 gem "rubocop-packaging", "0.5.2"
 gem "rubocop-performance", "1.18.0"