diff --git a/deep-learning/udacity-deeplearning/intro-to-tensorflow/requirements.txt b/deep-learning/udacity-deeplearning/intro-to-tensorflow/requirements.txt
old mode 100755
new mode 100644
index 4a67119a1..2c244b3f1
--- a/deep-learning/udacity-deeplearning/intro-to-tensorflow/requirements.txt
+++ b/deep-learning/udacity-deeplearning/intro-to-tensorflow/requirements.txt
@@ -41,7 +41,7 @@ scikit-learn==0.18.1
 scipy==0.19.0
 simplegeneric==0.8.1
 six==1.10.0
-tensorflow==1.0.0
+tensorflow==2.7.2
 terminado==0.6
 testpath==0.3
 tornado==4.4.3