diff --git a/sub-stats-dash/requirements.txt b/sub-stats-dash/requirements.txt
index 0035925..158a9d1 100644
--- a/sub-stats-dash/requirements.txt
+++ b/sub-stats-dash/requirements.txt
@@ -15,7 +15,7 @@ pandas==0.25.0
 plotly==4.0.0
 python-dateutil==2.8.0
 pytz==2019.1
-PyYAML==5.1.1
+PyYAML==5.4
 retrying==1.3.3
 six==1.12.0
 Werkzeug==0.15.5