diff --git a/requirements.txt b/requirements.txt
index bc50b3e..27bb443 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -63,7 +63,7 @@ pyparsing==2.4.7
 pyrsistent==0.16.0
 python-dateutil==2.8.1
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 pyzmq==18.1.1
 requests==2.23.0
 rise==5.6.1