diff --git a/requirements.txt b/requirements.txt
index 7d1aeba..e6f0459 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -74,7 +74,7 @@ mistune==0.7.3
 mpmath==0.19
 multipledispatch==0.4.9
 munch==2.1.1
-nbconvert==4.2.0
+nbconvert==6.5.1
 nbformat==4.2.0
 networkx==1.11
 nltk==3.2.2