diff --git a/requirements.txt b/requirements.txt
index 3c300ee..e0ad4d2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ pylint==2.3.1
 pyparsing==2.4.2
 python-dateutil==2.8.0
 pytz==2019.1
-PyYAML==5.1.1
+PyYAML==5.4
 redis==3.3.11
 scikit-learn==0.21.2
 scipy==1.3.0