diff --git a/requirements.txt b/requirements.txt
index b5ee15c..2ce6266 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,7 +38,7 @@ Markdown==2.6.8
 MarkupSafe==1.0
 mistune==0.7.4
 mock==2.0.0
-nbconvert==5.3.0
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook==5.0.0
 numpy==1.13.1