diff --git a/requirements.txt b/requirements.txt
index ca964f8..79bbcfa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,5 +43,5 @@ six==1.12.0
 SQLAlchemy==1.2.15
 urllib3==1.24.1
 visitor==0.1.3
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 WTForms==2.2.1