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..6583742 100644
--- a/angle_01_week_02/nn-from-scratch-master/requirements.txt
+++ b/angle_01_week_02/nn-from-scratch-master/requirements.txt
@@ -19,7 +19,7 @@ MarkupSafe==0.23
 matplotlib==1.4.3
 mistune==0.7.1
 mock==1.3.0
-nbconvert==4.0.0
+nbconvert==6.5.1
 nbformat==4.0.0
 nose==1.3.7
 notebook==4.0.4