diff --git a/pyproject.toml b/pyproject.toml
index 4b73829..379e3e3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ dependencies = [
 # for production use stays lean; CI installs `.[test]`.
 test = [
     "pytest>=8",
-    "ruff==0.12.5",
+    "ruff==0.16.0",
 ]
 
 [project.scripts]