diff --git a/requirements.txt b/requirements.txt
index bb20a2a..7a8129a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -84,7 +84,7 @@ pyparsing==2.4.7
 pyrsistent==0.16.0
 python-dateutil==2.8.1
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 pyzmq==19.0.1
 qtconsole==4.7.6
 QtPy==1.9.0