diff --git a/ChangeLog b/ChangeLog
index c82a9dc3c1..588c7ad261 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Aug  5 15:52:51 2014  SHIBATA Hiroshi  <shibata.hiroshi@gmail.com>
+
+	* gems/bundled_gems: Upgrade to test-unit-3.0.0 and minitest-5.4.0.
+
 Mon Aug  4 21:50:09 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
 	* test/win32ole/test_win32ole_record.rb: add for WIN32OLE_RECORD
diff --git a/gems/bundled_gems b/gems/bundled_gems
index 2038d29275..b9e6f80e7d 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -1,2 +1,3 @@
-test-unit 2.5.5
-minitest 5.3.4
+power_assert 0.1.3
+test-unit 3.0.0
+minitest 5.4.0