diff --git a/pytorch_code/lidar-bonnetal/train/tasks/semantic/requirements.txt b/pytorch_code/lidar-bonnetal/train/tasks/semantic/requirements.txt
index 2dd6e5c..e748ecd 100644
--- a/pytorch_code/lidar-bonnetal/train/tasks/semantic/requirements.txt
+++ b/pytorch_code/lidar-bonnetal/train/tasks/semantic/requirements.txt
@@ -7,5 +7,5 @@ torchvision==0.2.2.post3
 opencv_contrib_python==4.1.0.25
 matplotlib==2.2.3
 Pillow==6.1.0
-PyYAML==5.1.1
+PyYAML==5.4
 thop