diff --git a/requirements.txt b/requirements.txt
index ffe6e09..6abc663 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ MarkupSafe==1.0
 mistune==0.8.3
 nbconvert==5.3.1
 nbformat==4.4.0
-notebook==6.1.5
+notebook==6.4.12
 numpy==1.14.3
 pandas==0.23.0
 pandocfilters==1.4.2