diff --git a/dev-requirements.txt b/dev-requirements.txt
index 4c9e23a..942eccf 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -57,7 +57,7 @@ MarkupSafe==1.0
 mccabe==0.6.1
 mistune==0.8.3
 more-itertools==4.3.0
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook==5.4.1
 numpy==1.14.2