diff --git a/Gemfile b/Gemfile
index e1aa942..9a33b12 100644
--- a/Gemfile
+++ b/Gemfile
@@ -19,7 +19,7 @@ group :development, :test do
   gem 'logging'
   gem 'lumberjack'
   gem 'memory_profiler'
-  gem 'minitest', '< 5.27.0'
+  gem 'minitest', '< 5.28.0'
   gem 'minitest-debugger', require: false
   gem 'minitest-focus', '>= 1.1.2'
   gem 'minitest-hooks', '>= 1.5.0'