diff --git a/Gemfile b/Gemfile
index fbc83f2..69a9163 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gemspec
 gem 'rake', '~> 13.1'
 
 # Test
-gem 'minitest', '~> 5.21'
+gem 'minitest', '~> 6.0'
 
 # Lint
 gem 'rubocop', '~> 1.62'