diff --git a/requirements.txt b/requirements.txt
index d002acd..f5a2e6b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ gunicorn==19.9.0
 Jinja2==2.10
 Click==7.0
 MarkupSafe==1.1.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 itsdangerous==1.1.0
 wheel==0.32.3
 setuptools==40.7.1