diff --git a/requirements.txt b/requirements.txt
index e458623..465b739 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,7 +35,7 @@ Markdown==3.0.1
 MarkupSafe==1.1.1
 matplotlib==3.1.1
 mistune==0.8.4
-nbconvert==5.5.0
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook==6.0.0
 numpy==1.15.4