diff --git a/requirements.txt b/requirements.txt
index 1e06e0b8..1711a90f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,7 +43,7 @@ pyparsing==2.4.2
 pytest==5.2.1
 python-dateutil==2.8.0
 pytz==2019.3
-PyYAML==5.1.2
+PyYAML==5.4
 pyzmq==18.1.0
 requests==2.22.0
 retrying==1.3.3