diff --git a/titanic/requirements.txt b/titanic/requirements.txt
index 1d22c5d..2d9b3cf 100644
--- a/titanic/requirements.txt
+++ b/titanic/requirements.txt
@@ -68,7 +68,7 @@ more-itertools==5.0.0
 msgpack==0.5.6
 msgpack-numpy==0.4.3.2
 murmurhash==1.0.1
-nbconvert==5.4.1
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook==6.0.2
 numexpr==2.6.9