diff --git a/apps/backend/api/v0/requirements.txt b/apps/backend/api/v0/requirements.txt
old mode 100755
new mode 100644
index 1d651bd..af9c8c7
--- a/apps/backend/api/v0/requirements.txt
+++ b/apps/backend/api/v0/requirements.txt
@@ -1,4 +1,4 @@
-Flask_Cors==3.0.6
+Flask_Cors==3.0.9
 Flask==0.10.1
 Werkzeug==0.11.4
 Flask_RESTful==0.3.6