diff --git a/ChangeLog b/ChangeLog
index fdade505fc..cc38589662 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Jul 15 18:13:15 2016  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
+
+	* gems/bundled_gems: update latest gems.
+
 Fri Jul 15 17:08:57 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* util.c (ruby_strtod): do not underflow only by preceeding zeros,
diff --git a/gems/bundled_gems b/gems/bundled_gems
index c7190138a7..c956df059f 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -1,7 +1,7 @@
 power_assert 0.3.0
-test-unit 3.1.9
+test-unit 3.2.0
 minitest 5.9.0
-rake 11.1.2
+rake 11.2.2
 net-telnet 0.1.1
-did_you_mean 1.0.1
+did_you_mean 1.0.2
 xmlrpc 0.1.1