diff --git a/requirements.txt b/requirements.txt
index ee7cd30..f441b7f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -81,7 +81,7 @@ python-dateutil==2.8.1
 pytz==2019.3
 pywin32==227
 pywinpty==0.5.7
-PyYAML==5.3
+PyYAML==5.4
 pyzmq==19.0.0
 redis==2.10.6
 requests==2.23.0