diff --git a/gems/bundled_gems b/gems/bundled_gems
index d7f7214e69..2c19c86174 100644
--- a/gems/bundled_gems
+++ b/gems/bundled_gems
@@ -3,5 +3,5 @@ minitest 5.11.3 https://github.com/seattlerb/minitest
 net-telnet 0.1.1 https://github.com/ruby/net-telnet
 power_assert 1.1.1 https://github.com/k-tsj/power_assert
 rake 12.3.1 https://github.com/ruby/rake
-test-unit 3.2.7 https://github.com/test-unit/test-unit
+test-unit 3.2.8 https://github.com/test-unit/test-unit
 xmlrpc 0.3.0 https://github.com/ruby/xmlrpc