diff --git a/ni_mon/requirements.txt b/ni_mon/requirements.txt
index 961ce0c..720ef3c 100644
--- a/ni_mon/requirements.txt
+++ b/ni_mon/requirements.txt
@@ -9,6 +9,6 @@ setuptools >= 21.0.0
 python-keystoneclient == 3.20.0
 requests == 2.22.0
 confluent-kafka==1.1.0
-pyyaml==5.1.2
+pyyaml==5.4
 influxdb==5.2.3
 python-zunclient==4.3.0