diff --git a/Labelling tool - WS1/requirements.txt b/Labelling tool - WS1/requirements.txt
index 7334754..2c7c0a7 100644
--- a/Labelling tool - WS1/requirements.txt	
+++ b/Labelling tool - WS1/requirements.txt	
@@ -22,6 +22,6 @@ sklearn-contrib-py-earth==0.1.0
 SQLAlchemy==1.3.20
 statsmodels==0.12.1
 threadpoolctl==2.1.0
-tornado==6.1
+tornado==6.3.2
 typing-extensions==3.7.4.3
 xlrd==1.2.0