diff --git a/doc/requirements.txt b/doc/requirements.txt
index 6b3db178fa..e6de74cb42 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -11,4 +11,5 @@ nbformat
 matplotlib
 seaborn
 mypy_extensions>=0.4
-# mistune<2
\ No newline at end of file
+# mistune<2
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file