diff --git a/VolAdjGIPDashboard/requirements.txt b/VolAdjGIPDashboard/requirements.txt
index c2bb961..7a035ab 100644
--- a/VolAdjGIPDashboard/requirements.txt
+++ b/VolAdjGIPDashboard/requirements.txt
@@ -65,7 +65,7 @@ sqlparse==0.3.0
 Theano==1.0.5
 threadpoolctl==2.1.0
 toml==0.10.2
-tornado==6.1
+tornado==6.3.3
 traitlets==5.0.5
 typed-ast==1.4.0
 typing-extensions==3.7.4.3