diff --git a/requirements.txt b/requirements.txt
index 260b982..4b1fb39 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,5 +26,5 @@ six==1.11.0
 SQLAlchemy==1.2.11
 stripe==2.8.0
 urllib3==1.23
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 WTForms==2.2.1