diff --git a/requirements.txt b/requirements.txt
index 8e2cb27..7e2c87a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -91,7 +91,7 @@ mpmath==1.0.0
 msgpack==0.5.6
 multipledispatch==0.6.0
 navigator-updater==0.2.1
-nbconvert==5.4.0
+nbconvert==6.3.0
 nbformat==4.4.0
 networkx==2.1
 nltk==3.3