diff --git a/packages/dev/Languages/Python/requirements.txt b/packages/dev/Languages/Python/requirements.txt
index e673780..13f48f9 100644
--- a/packages/dev/Languages/Python/requirements.txt
+++ b/packages/dev/Languages/Python/requirements.txt
@@ -99,7 +99,7 @@ termcolor==1.1.0
 terminado==0.8.3  # Updated from 0.8.1
 testpath==0.4.4  # Updated from 0.4.2
 texttable==1.6.2  # Updated from 0.9.1
-tornado==6.0.4  # Updated from 5.1.1
+tornado==6.4.1  # Updated from 5.1.1
 traitlets==4.3.3  # Updated from 4.3.2
 typed-ast==1.4.1  # Updated from 1.3.1
 urllib3==1.26.5  # Updated from 1.24.1