diff --git a/Lecture5/requirements.txt b/Lecture5/requirements.txt
index 70bab6d..dc3f9fc 100644
--- a/Lecture5/requirements.txt
+++ b/Lecture5/requirements.txt
@@ -25,7 +25,7 @@ MarkupSafe==1.1.1
 matplotlib==3.1.2
 mistune==0.8.4
 more-itertools==8.1.0
-nbconvert==5.6.1
+nbconvert==6.3.0
 nbformat==5.0.4
 notebook==6.0.3
 numpy==1.17.5