diff --git a/requirements.txt b/requirements.txt
index 5dbd11d..00daa45 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -99,7 +99,7 @@ pyrsistent==0.16.0
 python-dateutil==2.8.0
 python-editor==1.0.4
 pytz==2019.3
-PyYAML==5.3.1
+PyYAML==5.4
 pyzmq==19.0.0
 qtconsole==4.7.2
 QtPy==1.9.0