diff --git a/notebook/requirements.txt b/notebook/requirements.txt
index 3375307..408e43f 100644
--- a/notebook/requirements.txt
+++ b/notebook/requirements.txt
@@ -33,7 +33,7 @@ more-itertools==8.3.0
 nbconvert==5.6.1
 nbformat==5.0.4
 nltk==3.5
-notebook==6.1.5
+notebook==6.4.12
 numpy==1.18.2
 packaging==20.4
 pandas==1.0.3