diff --git a/requirements.txt b/requirements.txt
index 226ecf6..d838e9c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,5 +42,5 @@ supervisor==3.3.1
 traceback2==1.4.0
 unittest2==1.1.0
 urllib3==1.19.1
-Werkzeug==0.11.10
+Werkzeug==0.15.3
 Whoosh==2.7.4