diff --git a/requirements.txt b/requirements.txt
index da55f0f..5fad9b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ matplotlib==3.0.3
 mccabe==0.6.1
 mistune==0.8.4
 multiprocess==0.70.7
-nbconvert==5.5.0
+nbconvert==6.3.0
 nbformat==4.4.0
 networkx==2.3
 nose==1.3.7