diff --git a/requirements.txt b/requirements.txt
index cad7640..a826002 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ MarkupSafe==1.0
 matplotlib==2.2.2
 mistune==0.8.3
 more-itertools==4.1.0
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook>=5.7.2
 numexpr==2.6.5