diff --git a/requirements.txt b/requirements.txt
index 5fc77d3..720f3ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,5 +31,5 @@ six==1.10.0
 SQLAlchemy==1.1.12
 urllib3==1.22
 vine==1.1.4
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 WTForms==2.1