diff --git a/requirements.txt b/requirements.txt
index 7d96359..f1ea666 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ mistune==0.8.4
 mock==2.0.0
 mpi4py==3.0.0
 mpmath==1.0.0
-nbconvert==5.6.1
+nbconvert==6.5.1
 nbformat==5.0.4
 netaddr==0.7.19
 netifaces==0.10.7