diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index e10443e..b54dfda
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ pytest==5.3.5
 python-dateutil==2.8.1
 python-slugify==4.0.0
 pytz==2019.3
-PyYAML==5.3
+PyYAML==5.4
 requests==2.22.0
 six==1.13.0
 stevedore==1.31.0