diff --git a/requirements.txt b/requirements.txt
index 97361ca..a43fe83 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ marshmallow-polyfield==3.2
 matplotlib==3.0.3
 mistune==0.8.4
 mpmath==1.1.0
-nbconvert==5.4.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==2.2
 notebook>=5.7.8