diff --git a/NEWS.md b/NEWS.md
index 6f3898eb22..5cfd132a79 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -57,6 +57,7 @@ The following bundled gems are added.
 
 The following bundled gems are updated.
 
+* minitest 5.25.5
 * rexml 3.4.1
 * net-imap 0.5.6
 * net-smtp 0.5.1
diff --git a/gems/bundled_gems b/gems/bundled_gems
index 37cb7f9fba..79c2e47351 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            5.25.4  https://github.com/minitest/minitest
+minitest            5.25.5  https://github.com/minitest/minitest
 power_assert        2.0.5   https://github.com/ruby/power_assert
 rake                13.2.1  https://github.com/ruby/rake
 test-unit           3.6.7   https://github.com/test-unit/test-unit