diff --git a/ArchMd/requirements.txt b/ArchMd/requirements.txt
old mode 100755
new mode 100644
index 2cd457c..4170534
--- a/ArchMd/requirements.txt
+++ b/ArchMd/requirements.txt
@@ -75,7 +75,7 @@ PyNaCl==1.3.0
 python-alipay-sdk==1.10.0
 python-dateutil==2.8.0
 pytz==2018.9
-PyYAML==3.13
+PyYAML==5.4
 redis==3.2.1
 six==1.12.0
 soupsieve==1.8