diff --git a/pyproject.toml b/pyproject.toml
index 238ac57..47b2ad7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ dependencies = [
 dev = [
     "mypy==1.13.0",
     "pytest==7.4.4",
-    "ruff==0.11.12",
+    "ruff==0.15.9",
 ]
 
 [tool.ruff]