diff --git a/backend/requirements_py3.txt b/backend/requirements_py3.txt
index 1334317f..ab1bdefa 100644
--- a/backend/requirements_py3.txt
+++ b/backend/requirements_py3.txt
@@ -44,7 +44,7 @@ python-editor==1.0.3
 python-engineio==2.2.0
 python-socketio==2.0.0
 pytz==2016.6
-PyYAML==3.12
+PyYAML==5.4
 requests==2.19.1
 rfc3987==1.3.8
 singledispatch==3.4.0.3