diff --git a/requirements.txt b/requirements.txt
index 828801e..6ccb12e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ matplotlib==3.1.1
 mistune==0.8.4
 mkl-fft==1.0.12
 mkl-random==1.0.2
-nbconvert==5.5.0
+nbconvert==6.5.1
 nbformat==4.4.0
 nltk==3.4.4
 notebook==5.7.8