diff --git a/requirements.txt b/requirements.txt
index ad443c7..a7f7f00 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -41,7 +41,7 @@ MarkupSafe==0.23
 matplotlib==2.0.0
 mistune==0.7.3
 mpmath==0.19
-nbconvert==5.0.0
+nbconvert==6.3.0
 nbformat==4.2.0
 ndg-httpsclient==0.4.2
 nose==1.3.7