diff --git a/vision-based-end2end-learning/requirements.txt b/vision-based-end2end-learning/requirements.txt
old mode 100755
new mode 100644
index fcac385..3e747bd
--- a/vision-based-end2end-learning/requirements.txt
+++ b/vision-based-end2end-learning/requirements.txt
@@ -7,5 +7,5 @@ opencv_python==3.1.0.1
 six==1.12.0
 Pillow==6.2.0
 protobuf
-PyYAML==4.2b1
+PyYAML==5.4
 pydot==1.4.1