diff --git a/requirements2.txt b/requirements2.txt
index 9e121c7..cd20d3e 100644
--- a/requirements2.txt
+++ b/requirements2.txt
@@ -58,7 +58,7 @@ python-dateutil==2.6.1
 python-debian==0.1.30
 pytz==2017.2
 pyxdg==0.25
-PyYAML==3.12
+PyYAML==5.4
 reportlab==3.3.0
 requests==2.10.0
 scikit-learn==0.18.2