diff --git a/pyproject.toml b/pyproject.toml
index a4c22c6..3d48143 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ dependencies = [
 ]
 
 [project.optional-dependencies]
-dev = ["pytest>=8.0", "httpx>=0.27", "pyright>=1.1", "ruff>=0.12"]
+dev = ["pytest>=8.0", "httpx>=0.27", "pyright>=1.1", "ruff>=0.15.21"]
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]
diff --git a/uv.lock b/uv.lock
index cc51868..c083274 100644
--- a/uv.lock
+++ b/uv.lock
@@ -391,7 +391,7 @@ requires-dist = [
     { name = "httpx", marker = "extra == 'dev'", specifier = ">=0.27" },
     { name = "pyright", marker = "extra == 'dev'", specifier = ">=1.1" },
     { name = "pytest", marker = "extra == 'dev'", specifier = ">=8.0" },
-    { name = "ruff", marker = "extra == 'dev'", specifier = ">=0.12" },
+    { name = "ruff", marker = "extra == 'dev'", specifier = ">=0.15.21" },
     { name = "uvicorn", extras = ["standard"], specifier = ">=0.30,<1.0" },
 ]
 provides-extras = ["dev"]