diff --git a/requirements.txt b/requirements.txt
index d7fef88..56cb249 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
 uvicorn[standard]==0.25.0
 fastapi==0.108.0
 jinja2==3.1.3
-ics==0.7.2
\ No newline at end of file
+ics==0.7.2
+zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file