diff --git a/backend/requirements.txt b/backend/requirements.txt
index 7d827a2..9908cc0 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -128,7 +128,7 @@ terminado==0.18.0
 tinycss2==1.2.1
 tomli==2.0.1
 tomlkit==0.12.3
-tornado==6.4
+tornado==6.4.2
 traitlets==5.14.0
 types-python-dateutil==2.8.19.14
 typing-inspect==0.9.0