diff --git a/requirements.txt b/requirements.txt
index c7afae7..4b39d7f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -66,7 +66,7 @@ mkl-fft==1.0.12
 mkl-random==1.0.2
 monotonic==1.5
 msgpack==0.6.2
-nbconvert==5.5.0
+nbconvert==6.5.1
 nbformat==4.4.0
 nose==1.3.7
 notebook==5.7.8