diff --git a/requirements.txt b/requirements.txt
index a7afffa..87c480d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ mccabe==0.6.1
 mistune==0.8.3
 more-itertools==4.3.0
 msgpack==0.5.6
-nbconvert==5.3.1
+nbconvert==6.3.0
 nbformat==4.4.0
 notebook==5.6.0
 numpy==1.15.1