diff --git a/Backend/requirements.txt b/Backend/requirements.txt
index b021407..0604fe5 100644
--- a/Backend/requirements.txt
+++ b/Backend/requirements.txt
@@ -12,7 +12,7 @@ mccabe==0.6.1
 pycodestyle==2.5.0
 pylint==2.3.1
 six==1.12.0
-tornado==6.0.2
+tornado==6.3.3
 typed-ast==1.3.1
 Werkzeug==0.15.2
 wrapt==1.11.1