diff --git a/requirements.txt b/requirements.txt
index 85a80ef..db7ed3a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ Jinja2==2.7.3
 MarkupSafe==0.23
 SQLAlchemy==1.0.0
 WTForms==2.0.2
-Werkzeug==0.10.4
+Werkzeug==0.15.5
 blinker==1.3
 flask-oidc==0.1.2
 httplib2==0.9.1