diff --git a/requirements.txt b/requirements.txt
index 83b4d3a..0159bb6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ psutil==5.6.3
 pyparsing==2.4.2
 python-dateutil==2.8.0
 pytz==2019.3
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 retrying==1.3.3
 scikit-learn==0.21.3