diff --git a/messenger/requirements.txt b/messenger/requirements.txt
old mode 100755
new mode 100644
index f1e3192..d02e9a1
--- a/messenger/requirements.txt
+++ b/messenger/requirements.txt
@@ -1,4 +1,4 @@
-Flask==0.11.1
+Flask==1.0
 Jinja2==2.8
 MarkupSafe==0.23
 Werkzeug==0.11.10