diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 9b61246..1197712
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ scipy>=1.4.1
 torch==1.13.1
 torchvision==0.14.1
 tqdm>=4.64.0
-protobuf<=3.20.1  # https://github.com/ultralytics/yolov5/issues/8012
+protobuf<=4.23.4  # https://github.com/ultralytics/yolov5/issues/8012
 
 # Logging -------------------------------------
 tensorboard>=2.4.1