diff --git a/requirements.txt b/requirements.txt
index 451c420..69f8310 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -84,7 +84,7 @@ mpmath==0.19
 msgpack-python==0.4.8
 multipledispatch==0.4.9
 navigator-updater==0.1.0
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==2.0
 nltk==3.2.4