diff --git a/requirements.txt b/requirements.txt
index e505bb4..41d6157 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ Markdown==2.6.9
 MarkupSafe==1.0
 matplotlib==2.1.0
 mistune==0.8.1
-nbconvert==5.3.1
+nbconvert==6.5.1
 nbformat==4.4.0
 notebook==5.2.1
 numpy==1.13.3