diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index beee86c..528571f
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 beautifulsoup4==4.4.1
-PyYAML==3.11
+PyYAML==5.4
 requests==2.12.4
 wheel==0.24.0
 lxml==3.8.0