diff --git a/requirements.txt b/requirements.txt
index b302a45..f2ed653 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,5 @@ django-material
 django-countries
 pdfkit
 python-dateutil
-requests
\ No newline at end of file
+requests
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file