diff --git a/Gemfile b/Gemfile
index 21687522..8cf9fee0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -67,7 +67,7 @@ end
 
 group :test do
   gem 'climate_control'
-  gem 'minitest', '< 6'
+  gem 'minitest', '< 7'
   gem 'minitest-reporters'
   gem 'simplecov', require: false
   gem 'simplecov-lcov', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index aab0c451..f852a5d2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -245,7 +245,8 @@ GEM
     matrix (0.4.2)
     mini_mime (1.1.5)
     mini_portile2 (2.8.9)
-    minitest (5.27.0)
+    minitest (6.0.1)
+      prism (~> 1.5)
     minitest-reporters (1.7.1)
       ansi
       builder
@@ -497,7 +498,7 @@ DEPENDENCIES
   listen
   lograge
   marc
-  minitest (< 6)
+  minitest (< 7)
   minitest-reporters
   mitlibraries-theme!
   net-imap