diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 3b2adbe..1ea8020
--- a/requirements.txt
+++ b/requirements.txt
@@ -80,7 +80,7 @@ python-dateutil==2.4.2
 python-docx==0.8.6
 pytz==2018.4
 pywebhdfs==0.4.1
-PyYAML==3.11
+PyYAML==5.4
 pyzmq==13.1.0
 qrcode==5.3
 redis==2.10.5