diff --git a/requirements.txt b/requirements.txt
index 499e25a..7d9c80d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -71,7 +71,7 @@ pyrsistent==0.16.0
 pyshp==2.1.0
 python-dateutil==2.8.1
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 pyzmq==19.0.1
 qtconsole==4.7.5
 QtPy==1.9.0