diff --git a/requirements.txt b/requirements.txt
index f284eb2..83a9fe1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -52,7 +52,7 @@ mysqlclient==1.4.2.post1
 nbconvert==5.5.0
 nbformat==4.4.0
 nltk==3.4.5
-notebook==6.0.0
+notebook==6.4.12
 numexpr==2.6.9
 numpy==1.16.4
 packaging==19.1