diff --git a/requirements.txt b/requirements.txt
index ccd520a..0802fa2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,7 +25,7 @@ mglearn==0.1.6
 mistune==0.8.3
 nbconvert==5.4.0
 nbformat==4.4.0
-notebook==5.7.0
+notebook==6.4.10
 numpy==1.15.1
 pandas==0.23.4
 pandocfilters==1.4.2