diff --git a/requirements.txt b/requirements.txt
index 17c3af6..df828a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -53,7 +53,7 @@ mccabe==0.6.1
 mistune==0.8.4
 mkl-fft==1.0.10
 mkl-random==1.0.2
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook==5.7.4
 numexpr==2.6.9