diff --git a/requirements.txt b/requirements.txt
index a20e669..858a671 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -96,7 +96,7 @@ mpmath==1.0.0
 msgpack-python==0.5.1
 multipledispatch==0.4.9
 navigator-updater==0.1.0
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==2.1
 nltk==3.2.5