diff --git a/requirements.txt b/requirements.txt
index 0f07d95..6663b25 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ PyMySQL==0.9.3
 pysmi==0.3.4
 pysnmp==4.4.12
 pytz==2020.1
-PyYAML==5.3.1
+PyYAML==5.4
 redis==3.5.3
 requests==2.23.0
 SQLAlchemy==1.3.17