diff --git a/requirements.txt b/requirements.txt
index ae90612..42b2996 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,7 +31,7 @@ matplotlib==2.1.2
 mistune==0.8.3
 mkl-fft==1.0.4
 mkl-random==1.0.1
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook==5.7.8
 numpy==1.13.3