diff --git a/requirements.txt b/requirements.txt
index ad2c0b1..f584fb4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,6 +23,6 @@ pyflakes==1.2.3
 requests==2.11.1
 six==1.10.0
 urllib3==1.17
-Werkzeug==0.11.11
+Werkzeug==0.15.3
 wheel==0.24.0
 xlrd==1.0.0