diff --git a/requirements.txt b/requirements.txt
index c7eafae0..85eedcd9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ pydot==1.4.1
 pyparsing==2.4.6
 python-dateutil==2.8.1
 pytz==2019.3
-PyYAML==5.3
+PyYAML==5.4
 scikit-learn==0.22.1
 scipy==1.4.1
 seaborn==0.9.0