diff --git a/Gemfile b/Gemfile
index 76cb5292..1e1d311d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,5 +6,5 @@ gemspec
 
 group :test do
   gem "turn"
-  gem 'minitest', '~> 5.3.1'
+  gem 'minitest', '~> 5.14.4'
 end