diff --git a/requirements_dev.txt b/requirements_dev.txt
index b621bcf..33c11a5 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -10,3 +10,4 @@ twine
 Click
 pytest
 black
+urllib3>=2.2.2 # not directly required, pinned by Snyk to avoid a vulnerability