diff --git a/NEWS.md b/NEWS.md
index 0398a45645..ba581e1cf6 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -207,7 +207,7 @@ The following bundled gem is added.
 
 The following bundled gems are updated.
 
-* minitest 5.25.2
+* minitest 5.25.4
 * power_assert 2.0.4
 * rake 13.2.1
 * test-unit 3.6.4
diff --git a/gems/bundled_gems b/gems/bundled_gems
index fe5dd0ae87..e1b0fa93f5 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -6,7 +6,7 @@
 # - revision: revision in repository-url to test
 #   if `revision` is not given, "v"+`version` or `version` will be used.
 
-minitest            5.25.2  https://github.com/minitest/minitest
+minitest            5.25.4  https://github.com/minitest/minitest
 power_assert        2.0.4   https://github.com/ruby/power_assert
 rake                13.2.1  https://github.com/ruby/rake
 test-unit           3.6.4   https://github.com/test-unit/test-unit