diff --git a/setup.py b/setup.py
index bc0b878..37b5146 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@
       install_requires=[
           'MarkupSafe==1.0',
           'SQLAlchemy==1.1.10',
-          'Werkzeug==0.12.2',
+          'Werkzeug==0.15.3',
           'aniso8601==1.2.1',
           'appdirs==1.4.3',
           'argparse==1.2.1',