diff --git a/requirements.txt b/requirements.txt
index 0bad48a..0674d73 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.4
 nltk==3.4.5
-notebook==6.0.3
+notebook==6.4.12
 numpy==1.18.1
 pandas==0.25.3
 pandoc==1.0.2