diff --git a/requirements.txt b/requirements.txt
index 9bd52ee..c5a9c78 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ pyrsistent==0.15.7
 python-dateutil==2.8.1
 Python-EasyConfig==0.1.7
 pytz==2019.3
-PyYAML==5.3
+PyYAML==5.4
 pyzmq==18.1.1
 resampy==0.2.2
 Resource==0.2.1