diff --git a/pyproject.toml b/pyproject.toml
index 83f37bae..133dbfc9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,7 +65,7 @@ dev = [
     # NOTE: black/mypy require Python >= 3.10 (dev tooling only; the library
     # floor stays 3.9).
     "black==26.5.1",
-    "ruff==0.16.4",
+    "ruff==0.16.5",
     "mypy==2.3.1",
     "maturin>=1.4,<2.0",
     "matplotlib>=3.5",