diff --git a/requirements.txt b/requirements.txt
index 2ff139c..ff62536 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,5 @@ psycopg2-binary
 pytest
 python-dotenv
 pytest-env
-prometheus-client
\ No newline at end of file
+prometheus-client
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file