diff --git a/python-code/requirements.txt b/python-code/requirements.txt
index a9fe71ef..8d0d1616 100644
--- a/python-code/requirements.txt
+++ b/python-code/requirements.txt
@@ -8,3 +8,4 @@ seaborn
 matplotlib
 gunicorn
 flask-cors
+pillow>=10.0.1 # not directly required, pinned by Snyk to avoid a vulnerability