diff --git a/requirements/multiple_category_classification_keras.txt b/requirements/multiple_category_classification_keras.txt
index df32bde..9bdeda6 100644
--- a/requirements/multiple_category_classification_keras.txt
+++ b/requirements/multiple_category_classification_keras.txt
@@ -41,7 +41,7 @@ Markdown==3.1.1
 MarkupSafe==1.1.1
 matplotlib==3.1.1
 mistune==0.8.4
-nbconvert==5.5.0
+nbconvert==6.3.0
 nbformat==4.4.0
 notebook==6.0.0
 numpy==1.16.4