diff --git a/requirements.txt b/requirements.txt
index f4d78980..3518b688 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,3 +2,4 @@ lxml
 python-dateutil
 pyyaml
 requests
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability