diff --git a/requirements.txt b/requirements.txt
index b848042..45f959a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ pylint==1.9.2
 pyparsing==2.2.0
 python-dateutil==2.7.3
 pytz==2018.5
-PyYAML==3.13
+PyYAML==5.4
 redis==2.10.6
 requests==2.19.1
 scipy==1.1.0