diff --git a/ruleserver/app/requirements.txt b/ruleserver/app/requirements.txt
index aefb070..9f08aa7 100644
--- a/ruleserver/app/requirements.txt
+++ b/ruleserver/app/requirements.txt
@@ -1,3 +1,4 @@
 flask>=1.1.2
 gunicorn>=20.0.4
 requests
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability