diff --git a/requirements.txt b/requirements.txt
index 8dbbeb4..5b50a90 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -58,7 +58,7 @@ more-itertools==7.2.0
 nbconvert==5.6.0
 nbformat==4.4.0
 nltk==3.4
-notebook==6.0.1
+notebook==6.4.12
 numpy==1.16.1
 pandas==0.25.1
 pandocfilters==1.4.2