diff --git a/requirements.txt b/requirements.txt
index 0052490..36e1e8f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ matplotlib==3.0.3
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.4
-notebook==6.4.1
+notebook==6.4.12
 numpy==1.21.0
 pandas==1.1.2
 pandocfilters==1.4.2