diff --git a/Gemfile b/Gemfile
index dd144b3..808334d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -47,7 +47,7 @@ group :development, :test do
   gem 'debug', platforms: %i[ mri windows ], require: 'debug/prelude'
 
   # Lock minitest to 5.x until Rails is compatible with 6.x
-  gem 'minitest', '~> 5.0'
+  gem 'minitest', '~> 6.0'
 
   # Audits gems for known security defects (use config/bundler-audit.yml to ignore issues)
   gem 'bundler-audit', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 4d8185a..aac897a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -195,7 +195,8 @@ GEM
     mini_magick (5.3.1)
       logger
     mini_mime (1.1.5)
-    minitest (5.27.0)
+    minitest (6.0.1)
+      prism (~> 1.5)
     msgpack (1.8.0)
     net-imap (0.6.2)
       date
@@ -450,7 +451,7 @@ DEPENDENCIES
   jbuilder
   kamal
   lexxy (~> 0.1.26.beta)
-  minitest (~> 5.0)
+  minitest (~> 6.0)
   pagy
   propshaft
   puma (>= 5.0)