diff --git a/requirements-to-freeze.txt b/requirements-to-freeze.txt
index 991e8590..42ae23ae 100644
--- a/requirements-to-freeze.txt
+++ b/requirements-to-freeze.txt
@@ -8,3 +8,4 @@ lxml
 pyquery
 requests
 soco
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability