diff --git a/requirements.txt b/requirements.txt
index 36de140..5a36168 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ jupyter-core==4.6.3
 lxml==4.5.1
 MarkupSafe==1.1.1
 mistune==0.8.4
-nbconvert==5.6.1
+nbconvert==6.5.1
 nbformat==5.0.7
 nominatim==0.1
 notebook==6.0.3