diff --git a/requirements.txt b/requirements.txt
index d4a580a..f83e2da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ Flask==0.9
 Flask-Login==0.1.3
 Jinja2==2.9.6
 MarkupSafe==1.0
-PyYAML==3.10
+PyYAML==5.4
 SQLAlchemy==0.8.4
 SecretStorage==2.0.0
 Werkzeug==0.8.3