diff --git a/docs/requirements.txt b/docs/requirements.txt
index 61dc91e..fe5433a 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -39,7 +39,7 @@ markupsafe==1.1.1
 matplotlib==3.0.3
 mistune==0.8.4
 more-itertools==7.0.0
-nbconvert==5.4.1
+nbconvert==6.5.1
 nbformat==4.4.0
 nbsphinx==0.4.2
 nibabel==2.4.0