diff --git a/requirements.txt b/requirements.txt
index deb0eb2..46754c0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -65,7 +65,7 @@ murmurhash==1.0.2
 natto-py==0.9.0
 nb-conda==2.2.1
 nb-conda-kernels==2.2.2
-nbconvert==5.6.0
+nbconvert==6.3.0
 nbformat==4.4.0
 networkx==2.4
 nltk==3.4.5