diff --git a/requirements.txt b/requirements.txt
index aab4ac3..f65b6e7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ matplotlib==3.0.2
 mistune==0.8.4
 mypy==0.701
 mypy-extensions==0.4.1
-nbconvert==5.5.0
+nbconvert==6.5.1
 nbformat==4.4.0
 nose==1.3.7
 nose-watch==0.9.2