diff --git a/requirements.txt b/requirements.txt
index f63bb82..3932c6d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ jupyter-core==4.1.0
 MarkupSafe==0.23
 matplotlib==1.5.1
 mistune==0.7.2
-nbconvert==4.1.0
+nbconvert==6.5.1
 nbformat==4.0.1
 notebook==4.1.0
 numpy==1.11.0