diff --git a/pyproject.toml b/pyproject.toml
index 1f4827dd..0640ae93 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -73,7 +73,7 @@ mss = "mss.__main__:main"
 dev = [
   "build==1.2.2.post1",
   "mypy==1.14.1",
-  "ruff==0.8.6",
+  "ruff==0.9.0",
   "twine==6.0.1",
 ]
 docs = [