diff --git a/requirements.txt b/requirements.txt
index b9a7f10..2944521 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ MarkupSafe==1.0
 matplotlib==2.0.2
 mistune==0.7.4
 mock==2.0.0
-nbconvert==5.2.1
+nbconvert==6.5.1
 nbformat==4.3.0
 networkx==1.11
 neurofinder==1.1.1