diff --git a/requirements.txt b/requirements.txt
index e24adf7..47726ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ jsonschema==2.6.0
 MarkupSafe==1.0
 matplotlib==2.1.2
 mistune==0.8.3
-nbconvert==5.3.1
+nbconvert==6.3.0
 nbformat==4.4.0
 numpy==1.14.0
 pandas==0.22.0