diff --git a/ChangeLog b/ChangeLog
index 31509a20654fff..fb50e406b87a92 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Mon Nov 23 11:44:11 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
+
+	* gems/bundled_gems: bump version to minitest-5.8.3
+
 Mon Nov 23 08:55:00 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
 	* ChangeLog: fix wrong reference for r52714
diff --git a/gems/bundled_gems b/gems/bundled_gems
index 053add83635752..720597dbf3cb9c 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -1,6 +1,6 @@
 power_assert 0.2.6
 test-unit 3.1.5
-minitest 5.8.2
+minitest 5.8.3
 rake 10.4.2
 net-telnet 0.1.1
 did_you_mean 1.0.0.beta3