diff --git a/docs/requirements.txt b/docs/requirements.txt
index 3d50230..47c33a3 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1 +1,2 @@
-mkdocs==1.4.2
\ No newline at end of file
+mkdocs==1.4.2
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file