diff --git a/server/requirements.txt b/server/requirements.txt
index 1d8a2d0b..6a3da18c 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -1,4 +1,4 @@
-tornado==6.5.4
+tornado==6.5.5
 sqlalchemy>=2.0.0,<2.1.0
 datetime==4.9
 python-dateutil==2.9.0.post0