diff --git a/requirements.txt b/requirements.txt
index 90d5382..4f66b02 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -67,7 +67,7 @@ mnist==0.2.1
 msgpack==0.5.6
 msgpack-numpy==0.4.4.1
 murmurhash==0.28.0
-nbconvert==5.3.1
+nbconvert==6.3.0
 nbformat==4.4.0
 nltk==3.3
 notebook==5.4.1