diff --git a/requirements.txt b/requirements.txt
index 77f25a2..2287332 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -57,7 +57,7 @@ mistune==0.8.4
 monotonic==1.5
 more-itertools==8.2.0
 murmurhash==1.0.2
-nbconvert==5.6.1
+nbconvert==6.5.1
 nbformat==5.0.4
 nltk==3.4.5
 notebook==6.0.3