diff --git a/pyproject.toml b/pyproject.toml
index b538d6c..027150a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ dev-test = [
 ]
 
 dev-fmt = [
-    "ruff==0.8.6",
+    "ruff==0.9.0",
     "pre-commit>=3.0.4,<4.0",
     "pydeps>=1.12.12,<4",
 ]