diff --git a/requirements.txt b/requirements.txt
index 95a0c35..0e1c806 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,5 @@ cryptography
 mysqlclient
 gunicorn
 pytest
-pytest-cov
\ No newline at end of file
+pytest-cov
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file