diff --git a/Algorithms/pySINDy/requirements.txt b/Algorithms/pySINDy/requirements.txt
old mode 100755
new mode 100644
index 3621110..929e968
--- a/Algorithms/pySINDy/requirements.txt
+++ b/Algorithms/pySINDy/requirements.txt
@@ -40,7 +40,7 @@ more-itertools==4.3.0
 nbconvert==5.4.0
 nbformat==4.4.0
 nose==1.3.7
-notebook==5.7.8
+notebook==6.1.5
 numpy==1.15.4
 packaging==18.0
 pandocfilters==1.4.2