diff --git a/requirements.txt b/requirements.txt
index 9cb2af4..58e9407 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,5 +21,5 @@ virtualenv==15.1.0
 virtualenv-clone==0.2.6
 virtualenvwrapper==4.8.2
 visitor==0.1.3
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 WTForms==2.1