diff --git a/requirements.txt b/requirements.txt
index b4d2dbe..a30c544 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ pycparser==2.20
 pyparsing==2.4.6
 python-dateutil==2.8.1
 pytz==2019.3
-PyYAML==5.1.1
+PyYAML==5.4
 resampy==0.2.2
 scikit-learn==0.20.3
 scipy==1.2.1