diff --git a/07-MNIST-Keras-TensorFlow/BackEnd/requirements.txt b/07-MNIST-Keras-TensorFlow/BackEnd/requirements.txt
index 059583c..798c0e7 100644
--- a/07-MNIST-Keras-TensorFlow/BackEnd/requirements.txt
+++ b/07-MNIST-Keras-TensorFlow/BackEnd/requirements.txt
@@ -5,7 +5,7 @@ certifi==2019.11.28
 chardet==3.0.4
 Click==7.0
 Flask==1.0.3
-Flask-Cors==3.0.8
+Flask-Cors==3.0.9
 gast==0.2.2
 google-auth==1.8.1
 google-auth-oauthlib==0.4.1