diff --git a/requirements.txt b/requirements.txt
index 009bed0..18af016 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -61,7 +61,7 @@ Markdown==2.6.8
 MarkupSafe==1.1.1
 mistune==0.8.4
 mock==4.0.2
-nbconvert==5.6.1
+nbconvert==6.3.0
 nbformat==5.0.6
 nltk==3.5
 numpy==1.16.4