diff --git a/requirements.txt b/requirements.txt
index d298593..eb8669c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ mock==3.0.5
 more-itertools==8.0.0
 msgpack==0.6.2
 natsort==6.0.0
-nbconvert==5.6.0
+nbconvert==6.3.0
 nbformat==4.4.0
 networkx==2.3
 nose==1.3.7