diff --git a/requirements.txt b/requirements.txt
index c20a128..cc42b6a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -117,7 +117,7 @@ python-dateutil==2.6.1
 python-debian==0.1.32
 pytz==2018.3
 pyxdg==0.25
-PyYAML==3.12
+PyYAML==5.4
 quality-of-service-demo-py==0.7.9
 reportlab==3.4.0
 requests==2.18.4