diff --git a/requirements-dev.txt b/requirements-dev.txt
index 14d8740e3..5871e95d0 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,3 +5,4 @@ setuptools>=61.0.0
 tox
 twine
 types-lxml
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability