diff --git a/requirements.txt b/requirements.txt
index 4d6ec3509efa..0436f415c642 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ Pillow>=7.1.2
 PyYAML>=5.3.1
 requests>=2.23.0
 scipy>=1.4.1
-torch>=1.7.0
+torch>=1.7.0  # see https://pytorch.org/get-started/locally/ (recommended)
 torchvision>=0.8.1
 tqdm>=4.64.0
 # protobuf<=3.20.1  # https://github.com/ultralytics/yolov5/issues/8012