diff --git a/requirements.txt b/requirements.txt
index 4e26d49..2768d3d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -99,7 +99,7 @@ mpmath==1.1.0
 msgpack==0.6.1
 multipledispatch==0.6.0
 navigator-updater==0.2.1
-nbconvert==5.4.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==2.2
 nltk==3.4