diff --git a/Gemfile b/Gemfile
index 3c3d65d..7abdf92 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ gem "minitest-ci", "~> 3.4"
 gem "minitest-reporters", "~> 1.1"
 gem "mocha", "~> 1.11"
 gem "rake", "~> 13.0"
-gem "rubocop", "1.25.1"
+gem "rubocop", "1.26.1"
 gem "rubocop-minitest", "0.17.2"
 gem "rubocop-packaging", "0.5.1"
 gem "rubocop-performance", "1.13.2"