diff --git a/requirements.txt b/requirements.txt
index 0a01cf6..a401845 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -41,6 +41,6 @@ SQLAlchemy==1.2.10
 typed-ast==1.1.0
 urllib3==1.23
 vine==1.1.4
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 wrapt==1.10.11
 WTForms==2.2.1