diff --git a/requirements.txt b/requirements.txt
index e3e9a71..673ac8d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,3 @@
 Flask
+werkzeug>=2.3.8 # not directly required, pinned by Snyk to avoid a vulnerability
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability