diff --git a/requirements_dev.txt b/requirements_dev.txt
index 32cf534..a212f0a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -171,7 +171,7 @@ terminado==0.18.1
 threadpoolctl==3.6.0
 tinycss2==1.4.0
 tomli==2.2.1
-tornado==6.4.2
+tornado==6.5.1
 tqdm==4.67.1
 traitlets==5.14.3
 twine==6.1.0