diff --git a/requirements.txt b/requirements.txt
index 3f0ff3d..7fa9213 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ Jinja2==2.8
 MarkupSafe==0.23
 SQLAlchemy==1.0.14
 WTForms==2.1
-Werkzeug==0.11.10
+Werkzeug==0.15.5
 argparse==1.2.1
 arrow==0.8.0
 bcrypt==3.1.1