diff --git a/requirements.txt b/requirements.txt
index 4dec8f4..a1e4598 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ MarkupSafe==1.1.1
 matplotlib==1.5.1
 mistune==0.8.4
 more-itertools==7.2.0
-nbconvert==4.1.0
+nbconvert==6.5.1
 nbformat==4.0.1
 notebook==4.1.0
 numpy==1.17.4