diff --git a/messenger/requirements.txt b/messenger/requirements.txt
old mode 100755
new mode 100644
index f1e3192..47a1b6c
--- a/messenger/requirements.txt
+++ b/messenger/requirements.txt
@@ -1,7 +1,7 @@
 Flask==0.11.1
 Jinja2==2.8
 MarkupSafe==0.23
-Werkzeug==0.11.10
+Werkzeug==0.15.3
 click==6.6
 gunicorn==19.6.0
 itsdangerous==0.24