diff --git a/requirements.txt b/requirements.txt
index b16efe18..8372fec1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 mkdocs
 mkdocs-static-i18n
-mkdocs-material
\ No newline at end of file
+mkdocs-material
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file