diff --git a/requirements.txt b/requirements.txt
index cd68815..dbb8203 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,6 +39,6 @@ six==1.11.0
 SQLAlchemy==1.2.11
 urllib3==1.23
 visitor==0.1.3
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 wrapt==1.11.1
 WTForms==2.2.1