diff --git a/requirements/main.txt b/requirements/main.txt
index 509c7fb8c..e82d8373f 100644
--- a/requirements/main.txt
+++ b/requirements/main.txt
@@ -2,7 +2,7 @@ blinker==1.3
 Flask==0.10.1
 gevent==1.0.1
 gunicorn==19.1
-PyYAML==3.11
+PyYAML==5.4
 requests==2.3.0
 rsa==3.1.4
 sqlalchemy==0.9.4