diff --git a/requirements.txt b/requirements.txt
index 7893ddc..df24228 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ MarkupSafe==1.1.1
 mccabe==0.6.1
 mistune==0.8.4
 murmurhash==1.0.2
-nbconvert==5.5.0
+nbconvert==6.5.1
 nbformat==4.4.0
 nltk==3.4.3
 notebook==5.7.8