diff --git a/requirements.txt b/requirements.txt
index d6341c6..ac95bbe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -51,7 +51,7 @@ MarkupSafe==1.1.1
 matplotlib==3.0.3
 mccabe==0.6.1
 mistune==0.8.4
-nbconvert==5.6.0
+nbconvert==6.5.1
 nbformat==4.4.0
 networkx==2.4
 nltk==3.4.5