diff --git a/Assignment_4/requirements.txt b/Assignment_4/requirements.txt
index 73695ef..e6d5eed 100644
--- a/Assignment_4/requirements.txt
+++ b/Assignment_4/requirements.txt
@@ -23,7 +23,7 @@ jupyter-console==4.0.3
 jupyter-core==4.0.6
 matplotlib==2.0.0
 mistune>=0.8.1
-nbconvert==4.1.0
+nbconvert==6.3.0
 nbformat==4.0.1
 notebook>=5.4.1
 numpy==1.10.4