diff --git a/requirements.txt b/requirements.txt
index ce56d38..e4cfa45 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ Flask==0.11.1
 Flask-Login==0.3.2
 Jinja2==2.8
 MarkupSafe==0.23
-PyYAML==3.11
+PyYAML==5.4
 SQLAlchemy==1.0.13
 Werkzeug==0.11.10
 click==6.6