diff --git a/requirements.txt b/requirements.txt
index 42ee599..bf30b67 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,5 +42,5 @@ six==1.11.0
 typed-ast==1.1.0
 urllib3==1.24.1
 validate-email==1.3
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 wrapt==1.10.11