diff --git a/requirements.txt b/requirements.txt
index 1959f48..02648aa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -69,7 +69,7 @@ mistune==0.8.4
 more-itertools==8.0.2
 munkres==1.1.2
 murmurhash==1.0.2
-nbconvert==5.6.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==2.3
 nltk==3.4.5