diff --git a/requirements.txt b/requirements.txt
index 94f6b60..7162374 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,5 +8,5 @@ WTForms==2.2.1
 gunicorn==20.0.4
 Flask-Script==2.0.6
 flask-login==0.5.0
-flask-cors==3.0.8
+flask-cors==3.0.9
 paho-mqtt==1.5.0
\ No newline at end of file