diff --git a/requirements.txt b/requirements.txt
index 7312d22..680b467 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ MarkupSafe==0.23
 matplotlib==1.5.2
 mistune==0.7.2
 munch==2.0.4
-nbconvert==4.2.0
+nbconvert==6.5.1
 nbformat==4.0.1
 netCDF4==1.2.4
 notebook==5.5.0