diff --git a/requirements2.txt b/requirements2.txt
index 20d432e..e813d6e 100644
--- a/requirements2.txt
+++ b/requirements2.txt
@@ -44,7 +44,7 @@ mistune==0.8.3
 nb-anacondacloud==1.4.0
 nb-conda==2.2.1
 nb-conda-kernels==2.1.0
-nbconvert==5.3.1
+nbconvert==6.3.0
 nbformat==4.4.0
 nbpresent==3.0.2
 notebook==5.6.0