diff --git a/bak/requirements.txt b/bak/requirements.txt
index e71cf59..c14d8a9 100644
--- a/bak/requirements.txt
+++ b/bak/requirements.txt
@@ -111,7 +111,7 @@ nbconvert==5.3.1
 nbformat==4.4.0
 nodejs==0.1.1
 nose==1.3.7
-notebook==5.6.0
+notebook==6.4.12
 npm==0.1.1
 numpy==1.14.5
 oauth2client==4.1.2