diff --git a/Gemfile b/Gemfile
index daee2578..cc0364f6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,7 @@ gemspec
 
 gem "concurrent-ruby", "~> 1.1"
 gem "irb"
-gem "mighty_test", "~> 0.4.1" unless RUBY_VERSION < "3.1"
+gem "mighty_test", "~> 0.5.1" unless RUBY_VERSION < "3.1"
 gem "minitest", "~> 5.11"
 gem "rake", "~> 13.0"
 gem "rubocop", "1.84.0"