diff --git a/requirements.txt b/requirements.txt
index 2525489..8a50a77 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -90,7 +90,7 @@ mpmath==1.1.0
 msgpack==0.6.1
 multipledispatch==0.6.0
 navigator-updater==0.2.1
-nbconvert==5.4.1
+nbconvert==6.3.0
 nbformat==4.4.0
 networkx==2.2
 nltk==3.4