diff --git a/pyproject.toml b/pyproject.toml
index d965c3d..beacbaf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -76,7 +76,7 @@ develop = [
   "isort<6",
   "black<25",
   "poethepoet<1",
-  "ruff<0.8",
+  "ruff<0.9",
 ]
 release = [
   "build<2",