diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3f81b71..4d5a213 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,2 +1,2 @@
 # Production scripts remain standard-library only. This file is for CI/development.
-ruff==0.15.21
+ruff==0.16.5