diff --git a/requirements.txt b/requirements.txt
index 4eb0f11..a96314d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,6 +40,6 @@ python-dateutil==2.7.3
 requests==2.18.4
 six==1.11.0
 urllib3==1.22
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 wrapt==1.10.11
 WTForms==2.1