diff --git a/requirements.txt b/requirements.txt
index 3ddcfa2..fb46495 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,6 +24,6 @@ requests==2.12.1
 SQLAlchemy==1.1.4
 urllib3==1.19.1
 visitor==0.1.3
-Werkzeug==0.11.11
+Werkzeug==0.15.3
 WTForms==2.1
 slackclient==1.0.4