diff --git a/requirements.txt b/requirements.txt
index 100fb84..bddad04 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,7 +40,7 @@ Markdown==2.6.11
 MarkupSafe==1.0
 mistune==0.8.3
 mock==2.0.0
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 nltk==3.3
 notebook==5.6.0