diff --git a/Algorithms/pySINDy/requirements.txt b/Algorithms/pySINDy/requirements.txt
old mode 100755
new mode 100644
index 3621110..d997723
--- a/Algorithms/pySINDy/requirements.txt
+++ b/Algorithms/pySINDy/requirements.txt
@@ -21,7 +21,7 @@ idna==2.7
 imagesize==1.1.0
 ipykernel==5.1.0
 ipyparallel==6.2.3
-ipython==7.2.0
+ipython==7.16.3
 ipython-genutils==0.2.0
 ipywidgets==7.4.2
 isort==4.3.4