diff --git a/ml/udacity_nano_degree/machine-learning-projects/projects/practice_projects/cnn/requirements/requirements.txt b/ml/udacity_nano_degree/machine-learning-projects/projects/practice_projects/cnn/requirements/requirements.txt
old mode 100755
new mode 100644
index 84d7203..5a2283c
--- a/ml/udacity_nano_degree/machine-learning-projects/projects/practice_projects/cnn/requirements/requirements.txt
+++ b/ml/udacity_nano_degree/machine-learning-projects/projects/practice_projects/cnn/requirements/requirements.txt
@@ -7,4 +7,4 @@ tqdm==4.11.2
 keras==2.0.2
 scikit-learn==0.18.1
 pillow==4.0.0
-tensorflow==1.0.0
\ No newline at end of file
+tensorflow==2.5.2
\ No newline at end of file