diff --git a/angle_01_week_02/nn-from-scratch-master/requirements.txt b/angle_01_week_02/nn-from-scratch-master/requirements.txt
index ecae77f..5647cf9 100644
--- a/angle_01_week_02/nn-from-scratch-master/requirements.txt
+++ b/angle_01_week_02/nn-from-scratch-master/requirements.txt
@@ -22,7 +22,7 @@ mock==1.3.0
 nbconvert==4.0.0
 nbformat==4.0.0
 nose==1.3.7
-notebook==4.0.4
+notebook==6.4.12
 numpy==1.9.2
 path.py==8.1
 pbr==1.6.0