diff --git a/requirements.txt b/requirements.txt
index cd1a3ac..778aa94 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -110,7 +110,7 @@ pyparsing==2.4.6
 pyrsistent==0.16.0
 python-dateutil==2.8.1
 pytz==2019.3
-PyYAML==5.3.1
+PyYAML==5.4
 pyzmq==19.0.0
 qtconsole==4.7.2
 QtPy==1.9.0