diff --git a/requirements.txt b/requirements.txt
index 65f1ae5..5816b6c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -133,7 +133,7 @@ urllib3==1.15.1
 virtualenv==14.0.6
 virtualenv-clone==0.2.6
 virtualenvwrapper==4.7.1
-Werkzeug==0.11.2
+Werkzeug==0.15.3
 xlrd==0.9.4
 XlsxWriter==0.7.7
 xlwt==1.0.0