diff --git a/requirements.txt b/requirements.txt
index 0422b18..65a7f96 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,5 +19,5 @@ pytz==2017.2
 requests==2.13.0
 setuptools==34.4.1
 six==1.10.0
-Werkzeug==0.12.1
+Werkzeug==0.15.3
 wheel==0.29.0