diff --git a/requirements.txt b/requirements.txt
index 410dc2c..35b6387 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,7 +18,7 @@ jupyter-core==4.2.1
 Markdown==2.6.8
 MarkupSafe==0.23
 mistune==0.7.3
-nbconvert==5.1.1
+nbconvert==6.5.1
 nbformat==4.2.0
 notebook==4.4.1
 pandocfilters==1.4.1