diff --git a/requirements.txt b/requirements.txt
index 830ca34..60fe04c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ mistune==0.8.3
 msgpack-numpy==0.4.1
 msgpack-python==0.5.6
 murmurhash==0.28.0
-nbconvert==5.3.1
+nbconvert==6.3.0
 nbformat==4.4.0
 nbsphinx==0.3.3
 networkx==2.1