diff --git a/requirements.txt b/requirements.txt
index 9ab7b31..263e4e8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,5 +14,5 @@ requests==2.20.0
 six==1.10.0
 SQLAlchemy==1.0.15
 Wand==0.4.5
-Werkzeug==0.11.11
+Werkzeug==0.15.3
 Whoosh==2.7.4