diff --git a/Machine Learning/Analytics Jupyter Notebooks/ml-analytics-classification-requirements.txt b/Machine Learning/Analytics Jupyter Notebooks/ml-analytics-classification-requirements.txt
index e19a32f5..e8274d9c 100644
--- a/Machine Learning/Analytics Jupyter Notebooks/ml-analytics-classification-requirements.txt	
+++ b/Machine Learning/Analytics Jupyter Notebooks/ml-analytics-classification-requirements.txt	
@@ -44,7 +44,7 @@ Send2Trash==1.5.0
 six==1.13.0
 terminado==0.8.3
 testpath==0.4.4
-tornado==6.0.3
+tornado==6.3.2
 traitlets==4.3.3
 urllib3==1.25.7
 wcwidth==0.1.7