diff --git a/requirements.txt b/requirements.txt
index 848c0e6..21d7add 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ Mako==0.9.1
 MarkupSafe==1.0
 SQLAlchemy==1.2.2
 WTForms==2.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 alembic==0.9.7
 apturl==0.5.2ubuntu4
 blinker==1.4