diff --git a/polygon-yolov5/requirements.txt b/polygon-yolov5/requirements.txt
index ee901d4..0735570 100644
--- a/polygon-yolov5/requirements.txt
+++ b/polygon-yolov5/requirements.txt
@@ -30,3 +30,5 @@ pandas
 # Cython  # for pycocotools https://github.com/cocodataset/cocoapi/issues/172
 # pycocotools>=2.0  # COCO mAP
 thop  # FLOPs computation
+protobuf>=4.25.8 # not directly required, pinned by Snyk to avoid a vulnerability
+urllib3>=2.5.0 # not directly required, pinned by Snyk to avoid a vulnerability