diff --git a/requirements.txt b/requirements.txt
index 954f9d0..bb0ed80 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ nbconvert==5.4.1
 nbformat==4.4.0
 networkx==2.3
 nltk==3.4.1
-notebook==5.7.6
+notebook==6.4.12
 numpy==1.16.2
 pandocfilters==1.4.2
 parso==0.3.4