diff --git a/images/hub/requirements.txt b/images/hub/requirements.txt
index d311c299a8..86d984b8b7 100644
--- a/images/hub/requirements.txt
+++ b/images/hub/requirements.txt
@@ -229,7 +229,7 @@ statsd==4.0.1
     # via -r unfrozen/requirements.txt
 text-unidecode==1.3
     # via python-slugify
-tornado==6.4.1
+tornado==6.4.2
     # via
     #   jupyterhub
     #   jupyterhub-idle-culler