diff --git a/requirements.txt b/requirements.txt
index 2522e24..b237439 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -45,7 +45,7 @@ more-itertools==8.0.0
 nbconvert==5.6.1
 nbformat==4.4.0
 nltk==3.4.5
-notebook==6.1.5
+notebook==6.4.10
 numpy==1.17.4
 oauthlib==3.1.0
 opt-einsum==3.1.0