diff --git a/requirements.txt b/requirements.txt
index 1e94a49..a301d36 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ mistune==0.8.4
 mock==4.0.2
 nbconvert==5.6.1
 nbformat==5.0.7
-notebook==6.1.3
+notebook==6.4.12
 numpy==1.19.1
 oauthlib==3.1.0
 opt-einsum==3.3.0