diff --git a/requirements_notebook.txt b/requirements_notebook.txt
index 25c5339..3cfeb8a 100644
--- a/requirements_notebook.txt
+++ b/requirements_notebook.txt
@@ -86,7 +86,7 @@ stack-data==0.6.3
 terminado==0.18.1
 tinycss2==1.3.0
 tomli==2.0.1
-tornado==6.4.2
+tornado==6.5.1
 traitlets==5.14.3
 types-python-dateutil==2.9.0.20240316
 typing_extensions==4.12.0