diff --git a/RabbitMqUdn/requirements.txt b/RabbitMqUdn/requirements.txt
index 131ff49..002c46a 100644
--- a/RabbitMqUdn/requirements.txt
+++ b/RabbitMqUdn/requirements.txt
@@ -13,7 +13,7 @@ itsdangerous==0.24
 Jinja2==2.10
 MarkupSafe==1.0
 pika==1.0.1
-PyYAML==3.11
+PyYAML==5.4
 requests==2.19.1
 six==1.9.0
 urllib3==1.23