diff --git a/requirements.txt b/requirements.txt
index 57daba1c..a34346a0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,4 +16,4 @@ requests==2.13.0
 six==1.10.0
 SQLAlchemy==1.1.9
 tzlocal==1.3
-Werkzeug==0.12.1
+Werkzeug==0.15.3