diff --git a/requirements.txt b/requirements.txt
index d506fac..dda4427 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ MarkupSafe==1.0
 mistune==0.8.4
 nbconvert==5.4.0
 nbformat==4.4.0
-notebook==5.7.0
+notebook==6.4.12
 numpy==1.15.3
 pandocfilters==1.4.2
 parso==0.3.1