diff --git a/requirements.txt b/requirements.txt
index ad21504..ba373a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -85,7 +85,7 @@ more-itertools==7.2.0
 msgpack==0.5.6
 msgpack-numpy==0.4.3.2
 murmurhash==1.0.1
-nbconvert==5.4.0
+nbconvert==6.3.0
 nbdime==1.0.4
 nbformat==4.4.0
 nltk==3.4