diff --git a/requirements.txt b/requirements.txt
index 7ff180d..a81cd6c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,4 +5,4 @@ Jinja2==2.9.6
 MarkupSafe==1.0
 py==1.4.34
 pytest==3.1.3
-Werkzeug==0.12.2
+Werkzeug==0.15.3