diff --git a/example/hipages/version_tracking/requirements.txt b/example/hipages/version_tracking/requirements.txt
index 8b8cb2ff..d02e6344 100644
--- a/example/hipages/version_tracking/requirements.txt
+++ b/example/hipages/version_tracking/requirements.txt
@@ -1,2 +1,3 @@
 fastapi
-hip-data-tools
\ No newline at end of file
+hip-data-tools
+numpy>=1.22.2 # not directly required, pinned by Snyk to avoid a vulnerability
\ No newline at end of file