diff --git a/requirements.txt b/requirements.txt
index f0702d4..e02fde4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ pymssql==2.1.4
 PyMySQL==0.9.3
 python-dateutil==2.8.1
 pytz==2020.1
-PyYAML==5.1
+PyYAML==5.4
 redis==3.5.1
 requests==2.22.0
 requests-cache==0.5.0