diff --git a/requirements.txt b/requirements.txt
index 02564ab..81d7731 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,5 @@ jupyter
 python-dotenv
 gunicorn
 
+jupyter-server>=2.14.1 # not directly required, pinned by Snyk to avoid a vulnerability
+tornado>=6.4.1 # not directly required, pinned by Snyk to avoid a vulnerability