diff --git a/doc/requirements.txt b/doc/requirements.txt
index 6e8aa7a7a5..401fe04316 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -20,3 +20,4 @@ jupyter
 notebook
 sphinx-autodoc-typehints
 fonttools>=4.43.0 # not directly required, pinned by Snyk to avoid a vulnerability
+pillow>=10.2.0 # not directly required, pinned by Snyk to avoid a vulnerability