diff --git a/requirements.txt b/requirements.txt
index 06eed1b..b3c55c5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ mistune==0.8.3
 msgpack==0.5.6
 msgpack-numpy==0.4.3.1
 murmurhash==0.28.0
-nbconvert==5.3.1
+nbconvert==6.3.0
 nbformat==4.4.0
 nltk==3.4.5
 notebook==5.7.8