diff --git a/DataViz/requirements.txt b/DataViz/requirements.txt
index 2212caf2..70c05f6b 100644
--- a/DataViz/requirements.txt
+++ b/DataViz/requirements.txt
@@ -15,7 +15,7 @@ pylint==2.5.2
 pyparsing==2.4.2
 python-dateutil==2.8.0
 pytz==2019.3
-PyYAML==5.1.2
+PyYAML==5.4
 six==1.12.0
 sqlparse==0.3.0
 tornado==6.0.3