diff --git a/requirements.txt b/requirements.txt
index ca49a74..e4a2fd3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -66,7 +66,7 @@ matplotlib==2.2.3
 mistune==0.8.4
 mock==2.0.0
 mpi4py==2.0.0
-nbconvert==5.5.0
+nbconvert==6.3.0
 nbformat==4.4.0
 neo==0.5.1
 networkx==1.11