diff --git a/ChangeLog b/ChangeLog
index 29cca7c0b2..1fd1fd9ac1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Sep  9 22:43:29 2016  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
+
+	* gems/bundled_gems: sort lines.
+
 Fri Sep  9 17:59:46 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* thread.c (rb_threadptr_raise): set cause from the called thread,
diff --git a/gems/bundled_gems b/gems/bundled_gems
index d34b6fd3f3..69917d3f88 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -1,7 +1,7 @@
-power_assert 0.3.1
-test-unit 3.2.1
-minitest 5.9.0
-rake 11.2.2
-net-telnet 0.1.1
 did_you_mean 1.0.2
+minitest 5.9.0
+net-telnet 0.1.1
+power_assert 0.3.1
+rake 11.2.2
+test-unit 3.2.1
 xmlrpc 0.1.1