diff --git a/requirements.txt b/requirements.txt
index 77e2acc..2e2f3de 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -49,7 +49,7 @@ matplotlib==3.3.0
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.7
-notebook==6.1.0
+notebook==6.4.12
 numpy==1.18.5
 oauthlib==3.1.0
 opt-einsum==3.3.0