diff --git a/yolov3/requirements.txt b/yolov3/requirements.txt
old mode 100755
new mode 100644
index 5cd8526..a80deb9
--- a/yolov3/requirements.txt
+++ b/yolov3/requirements.txt
@@ -14,7 +14,7 @@ h5py==2.8.0
 pandas==0.23.4
 tqdm==4.29.1
 tensorboardX==1.6
-opencv_python==3.4.3.18
+opencv_python==3.4.7.28
 torch==0.4.1
 torchvision==0.2.1
 pyqt5