diff --git a/builder/requirements.txt b/builder/requirements.txt
index ee36e43..e3c6252 100644
--- a/builder/requirements.txt
+++ b/builder/requirements.txt
@@ -42,7 +42,7 @@ MarkupSafe==1.0
 marshmallow==2.13.6
 mistune==0.7.4
 mock==2.0.0
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==1.11
 nose==1.3.7