diff --git a/py_quarto_basics/requirements.txt b/py_quarto_basics/requirements.txt
index 5cddbcd..0986cf5 100644
--- a/py_quarto_basics/requirements.txt
+++ b/py_quarto_basics/requirements.txt
@@ -106,7 +106,7 @@ soupsieve==2.5
 stack-data==0.6.3
 terminado==0.18.0
 tinycss2==1.2.1
-tornado==6.4.2
+tornado==6.5.1
 traitlets==5.14.1
 types-python-dateutil==2.8.19.20240106
 typing_extensions==4.9.0