diff --git a/requirements.txt b/requirements.txt
index dacbebc..ce35c91 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,7 +38,7 @@ PyJWT==1.5.3
 python-dateutil==2.6.1
 python-editor==1.0.3
 python-mimeparse==1.6.0
-PyYAML==3.12
+PyYAML==5.4
 requests==2.18.4
 six==1.11.0
 SQLAlchemy==1.1.14