diff --git a/NEWS.md b/NEWS.md
index 6498621712..5c4fadc7de 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -179,7 +179,7 @@ Note: We're only listing outstanding class updates.
     * stringio 3.0.3
     * timeout 0.3.0
 *   The following bundled gems are updated.
-    * minitest 5.16.2
+    * minitest 5.16.3
     * net-imap 0.2.3
     * rbs 2.6.0
     * typeprof 0.21.3
diff --git a/gems/bundled_gems b/gems/bundled_gems
index 5faa75c5e2..63536571d9 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -1,5 +1,5 @@
 # gem-name version-to-bundle repository-url [optional-commit-hash-to-test-or-defaults-to-v-version]
-minitest        5.16.2  https://github.com/seattlerb/minitest
+minitest        5.16.3  https://github.com/seattlerb/minitest
 power_assert    2.0.1   https://github.com/ruby/power_assert
 rake            13.0.6  https://github.com/ruby/rake
 test-unit       3.5.3   https://github.com/test-unit/test-unit