diff --git a/Gemfile b/Gemfile
index e8784ebae..e764c4eb3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ source 'https://rubygems.org'
 gemspec
 
 gem "rake"
-gem "minitest", "~> 5.25"
+gem "minitest", "~> 6.0"
 gem "minitest-hooks"
 gem 'minitest-slow_test'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index c7fe1ce9a..56bdf7fee 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,7 +75,9 @@ GEM
     logger (1.7.0)
     majo (1.0.1)
     memory_profiler (1.1.0)
-    minitest (5.27.0)
+    minitest (6.0.2)
+      drb (~> 2.0)
+      prism (~> 1.5)
     minitest-hooks (1.5.3)
       minitest (> 5.3)
     minitest-slow_test (0.2.0)
@@ -124,7 +126,7 @@ DEPENDENCIES
   debug
   majo
   memory_profiler
-  minitest (~> 5.25)
+  minitest (~> 6.0)
   minitest-hooks
   minitest-slow_test
   rake