diff --git a/requirements.txt b/requirements.txt
index 3e51e70..bf3b8e3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -69,7 +69,7 @@ nbconvert==5.6.1
 nbformat==5.0.6
 networkx==2.4
 nltk==3.5
-notebook==6.1.5
+notebook==6.4.12
 numpy==1.18.5
 oauthlib==3.1.0
 opt-einsum==3.2.1