diff --git a/requirements.txt b/requirements.txt
index 0e9782f..89db1dd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -87,7 +87,7 @@ pysha3==1.0.2
 python-dateutil==2.8.0
 python-editor==1.0.3
 pytz==2016.4
-PyYAML==5.1
+PyYAML==5.4
 pyzmq==18.0.1
 qtconsole==4.4.4
 redo==2.0.1