diff --git a/test-requirements.txt b/test-requirements.txt
index 4b3108a9..f87744ac 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,3 +8,4 @@ PyYAML
 requests
 setuptools>=30
 tox
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability