diff --git a/requirements.txt b/requirements.txt
index 019a23e68d..d00ed178f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -73,7 +73,7 @@ python-editor==1.0
 python-engineio==0.9.1
 python-socketio==1.3
 pytz==2016.4
-PyYAML==3.12
+PyYAML==5.4
 redis==2.10.5
 requests==2.13.0
 s3transfer==0.1.13