diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index b36b365..5ff909a
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ Pillow>=6.2.2
 pycrypto==2.6.1
 MySQL-python==1.2.5
 pyOpenSSL==18.0.0
-PyYAML==3.12
+PyYAML==5.4
 redis==2.10.6
 requests==2.19.1
 rsa==3.4.2