diff --git a/pyproject.toml b/pyproject.toml
index 73c7162..c9f41b5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -89,7 +89,7 @@ develop = [
   "mypy<2",
   "poethepoet<1",
   "pyproject-fmt>=1.3,<1.8",
-  "ruff<0.4",
+  "ruff<0.5",
   "validate-pyproject<0.17",
 ]
 fileio = [