diff --git a/back-end/requirements.txt b/back-end/requirements.txt
index 51d13194..645eea03 100644
--- a/back-end/requirements.txt
+++ b/back-end/requirements.txt
@@ -10,7 +10,7 @@ colorama==0.4.1
 dnspython==1.16.0
 firebase-admin==3.2.0
 Flask==1.1.1
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 flask-mongoengine==0.9.5
 Flask-PyMongo==2.3.0
 Flask-RESTful==0.3.7