diff --git a/07-MNIST-Keras-TensorFlow/BackEnd/requirements.txt b/07-MNIST-Keras-TensorFlow/BackEnd/requirements.txt
index 059583c..2668c50 100644
--- a/07-MNIST-Keras-TensorFlow/BackEnd/requirements.txt
+++ b/07-MNIST-Keras-TensorFlow/BackEnd/requirements.txt
@@ -42,7 +42,7 @@ tensorboard==1.9.0
 tensorflow>=1.15.0
 tensorflow-estimator==2.0.1
 termcolor==1.1.0
-urllib3==1.25.7
+urllib3==1.26.5
 virtualenv==16.6.0
 Werkzeug==0.15.4
 wrapt==1.11.2
\ No newline at end of file