diff --git a/requirements.txt b/requirements.txt
index 9aa7483..1680e0c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,4 +33,4 @@ virtualenv==15.0.3
 virtualenv-clone==0.2.6
 virtualenvwrapper==4.7.2
 wcwidth==0.1.7
-Werkzeug==0.11.11
+Werkzeug==0.15.5