diff --git a/requirements.txt b/requirements.txt
index 72e99edeb..cd269bb84 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,4 +16,5 @@ qpsolvers
 scipy
 sortedcontainers
 tensorflow
-django>=4.2.20 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file
+django>=4.2.20 # not directly required, pinned by Snyk to avoid a vulnerability
+tornado>=6.5 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file