diff --git a/requirements.txt b/requirements.txt
index 0bc6365..bad6a80 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,4 +21,4 @@ six==1.11.0
 SQLAlchemy==1.2.11
 SQLAlchemy-ORM-tree==0.1.2
 urllib3==1.23
-Werkzeug==0.14.1
+Werkzeug==0.15.3