diff --git a/kisensum/openadr/requirements.txt b/kisensum/openadr/requirements.txt
index e6c12031..5bd7e8f7 100644
--- a/kisensum/openadr/requirements.txt
+++ b/kisensum/openadr/requirements.txt
@@ -74,7 +74,7 @@ pytest==3.3.0
 pytest-django==3.1.2
 python-dateutil==2.6.1
 pytz==2017.2
-PyYAML==5.1
+PyYAML==5.4
 selenium==3.6.0
 signxml==2.4.0
 six==1.11.0