diff --git a/pyproject.toml b/pyproject.toml
index 9f90d73..4b2b5a3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ uvicorn = "0.29.0"
 [tool.poetry.dev-dependencies]
 pytest = "8.1.1"
 pytest-cov = "^5.0.0"
-ruff = "^0.3.0"
+ruff = "^0.4.2"
 httpx = "0.27.0"
 
 [tool.pytest.ini_options]