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..f400307a7
--- a/deep-learning/udacity-deeplearning/intro-to-tensorflow/requirements.txt
+++ b/deep-learning/udacity-deeplearning/intro-to-tensorflow/requirements.txt
@@ -6,7 +6,7 @@ decorator==4.0.11
 entrypoints==0.2.2
 html5lib==0.999999999
 ipykernel==4.5.2
-ipython==5.3.0
+ipython==7.16.3
 ipython-genutils==0.2.0
 ipywidgets==6.0.0
 Jinja2==2.9.5