diff --git a/requirements.txt b/requirements.txt
index ac211e2..13ca851 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ lxml==4.4.2
 MarkupSafe==1.1.1
 mistune==0.8.4
 more-itertools==8.0.2
-nbconvert==5.6.1
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook==6.0.2
 pandocfilters==1.4.2