diff --git a/requirements.txt b/requirements.txt
index abdedbd..62bcf2e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -77,7 +77,7 @@ mistune==0.7.2
 mock==2.0.0
 mpmath==0.19
 multipledispatch==0.4.8
-nbconvert==4.1.0
+nbconvert==6.5.1
 nbformat==4.0.1
 networkx==1.11
 nibabel==2.1.0.dev0