diff --git a/requirements.txt b/requirements.txt
index 93a1fe4..f6481e5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,6 +29,6 @@ SQLAlchemy==1.2.6
 SQLAlchemy-Utils==0.33.2
 urllib3==1.22
 URLObject==2.4.3
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 wincertstore==0.2
 WTForms==2.1