diff --git a/setup.py b/setup.py
index 2cfd29d..ba97a87 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,7 @@
             "reno",
         ],
         "style": [
-            "ruff==0.8.4",
+            "ruff==0.9.4",
         ],
         "lint": [
             "mypy==1.14.1",