diff --git a/requirements/production.txt b/requirements/production.txt
index d42914d9..8ea9a08d 100644
--- a/requirements/production.txt
+++ b/requirements/production.txt
@@ -7,3 +7,4 @@ gunicorn
 
 # Email backend
 django-anymail
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability