diff --git a/requirements.txt b/requirements.txt
index f2b5852..eab463c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -54,7 +54,7 @@ pyproj==2.6.1.post1
 pyrsistent==0.16.0
 python-dateutil==2.8.1
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 pyzmq==19.0.0
 qtconsole==4.7.3
 QtPy==1.9.0