diff --git a/requirements.txt b/requirements.txt
index 820dbaa..f6a94fd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,4 +8,4 @@ MarkupSafe==1.0
 mccabe==0.6.1
 pycodestyle==2.3.1
 pyflakes==1.6.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3