diff --git a/requirements.txt b/requirements.txt
index a23e6cc..cc69b9f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,5 +6,5 @@ MarkupSafe==0.23
 pyflakes==1.2.3
 pytest==3.0.6
 pytest-cov==2.3.1
-Werkzeug==0.11.15
+Werkzeug==0.15.3
 wheel==0.29.0