diff --git a/requirements.txt b/requirements.txt
index 780108e..da82f51 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,5 +33,5 @@ six==1.11.0
 urllib3>=1.23
 w3lib==1.19.0
 websockets>=5.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 yapf==0.20.2