diff --git a/requirements.txt b/requirements.txt
index f9e86e0..de5371a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ MarkupSafe==1.0
 matplotlib==2.2.2
 mistune==0.8.3
 mock==2.0.0
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==2.1
 nltk==3.3