diff --git a/rq_mantis/requirements.txt b/rq_mantis/requirements.txt
index 4cb5478..be382c9 100644
--- a/rq_mantis/requirements.txt
+++ b/rq_mantis/requirements.txt
@@ -5,4 +5,4 @@ Jinja2==2.8
 MarkupSafe==0.23
 redis==2.10.5
 rq==0.6.0
-Werkzeug==0.11.11
+Werkzeug==0.15.3