diff --git a/requirements.txt b/requirements.txt
index 5735146..20d954b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -80,7 +80,7 @@ msgpack-numpy==0.4.3.2
 msgpack-python==0.5.6
 murmurhash==0.28.0
 natsort==5.3.3
-nbconvert==5.4.0
+nbconvert==6.5.1
 nbformat==4.4.0
 nltk==3.6.6
 nose==1.3.7