diff --git a/requirements.txt b/requirements.txt
index c3b85f2..5224de5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ marshmallow==2.13.5
 mistune==0.7.3
 mpmath==0.19
 multipledispatch==0.4.9
-nbconvert==4.2.0
+nbconvert==6.3.0
 nbformat==4.2.0
 networkx==1.11
 nltk==3.2.4