diff --git a/docs/requirements.txt b/docs/requirements.txt
index a1513bdc..c90f8547 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -11,3 +11,4 @@ matplotlib
 # Needed for minorminer C docs
 breathe
 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