diff --git a/requirements.txt b/requirements.txt
index b0b8ce0..efc71b7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ Flask-Cors==1.9.0
 gevent==1.0.1
 uWSGI==2.0.7
 future==0.15.0
-PyYAML==3.11
+PyYAML==5.4
 python-etcd==0.3.2
 requests[security]==2.7.0
 urllib3==1.11