diff --git a/Gemfile b/Gemfile
index 62eb33f1..c39e61ed 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ source "https://rubygems.org"
 gemspec
 
 gem "concurrent-ruby", "~> 1.1"
-gem "mighty_test", "~> 0.3.0" unless RUBY_VERSION < "3.1"
+gem "mighty_test", "~> 0.4.0" unless RUBY_VERSION < "3.1"
 gem "minitest", "~> 5.11"
 gem "rake", "~> 13.0"
 gem "rubocop", "1.65.1"