diff --git a/backend/requirements.txt b/backend/requirements.txt
old mode 100755
new mode 100644
index 0a0b5ba..994f7cc
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -2,7 +2,7 @@ astroid==2.2.5
 Click==7.0
 ecdsa==0.13.2
 Flask==1.0.2
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 Flask-SQLAlchemy==2.4.0
 future==0.17.1
 gunicorn==20.0.4