diff --git a/requirements.txt b/requirements.txt
index 62a899a..0391265 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -75,7 +75,7 @@ mock==2.0.0
 more-itertools==8.0.2
 moviepy==1.0.0
 mpi4py==3.0.1
-nbconvert==5.5.0
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook==5.7.8
 numpy==1.18.0