diff --git a/requirements.txt b/requirements.txt
index 1a9ace7..d315e6f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ kiwisolver==1.2.0
 lxml==4.5.1
 MarkupSafe==1.1.1
 nltk==3.5
-notebook==6.0.3
+notebook==6.1.5
 numpy==1.18.5
 packaging==20.4
 pandocfilters==1.4.2