diff --git a/old_stuffs/requirements.txt b/old_stuffs/requirements.txt
index d922207..c44c6d4 100644
--- a/old_stuffs/requirements.txt
+++ b/old_stuffs/requirements.txt
@@ -53,7 +53,7 @@ Markdown==2.6.11
 MarkupSafe==1.1.0
 mccabe==0.6.1
 mistune==0.8.4
-nbconvert==5.4.0
+nbconvert==6.5.1
 nbformat==4.4.0
 nltk==3.6.6
 notebook==6.4.1