diff --git a/requirements.txt b/requirements.txt
index e847458..a996336 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -56,6 +56,6 @@ SQLAlchemy==1.2.5
 urllib3==1.22
 visitor==0.1.3
 webencodings==0.5.1
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 wrapt==1.10.11
 WTForms==2.1