diff --git a/requirements.txt b/requirements.txt
index 8e02494..12e37e8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -41,7 +41,7 @@ MarkupSafe==0.23
 marshmallow==2.15.0
 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