diff --git a/requirements.txt b/requirements.txt
index 7af6589..225c7ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,7 +46,7 @@ pyo==1.0.1
 pyparsing==2.4.6
 python-dateutil==2.8.1
 pytz==2019.3
-PyYAML==5.3.1
+PyYAML==5.4
 regex==2020.4.4
 requests==2.23.0
 scikit-learn==0.22.2.post1