diff --git a/requirements.txt b/requirements.txt
index c9ec419..7900176 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -55,7 +55,7 @@ pytest==4.6.2
 python-dateutil==2.8.0
 pytz==2019.1
 pywinpty==0.5.7
-PyYAML==5.3.1
+PyYAML==5.4
 pyzmq==18.0.1
 qtconsole==4.5.1
 requests==2.24.0