diff --git a/requirements.txt b/requirements.txt
index 2dc20f6..c68930b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -110,7 +110,7 @@ msgpack==0.6.1
 msgpack-numpy==0.4.3.2
 murmurhash==1.0.2
 natsort==7.0.1
-nbconvert==5.6.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==2.0
 nltk==3.4.5