diff --git a/pyproject.toml b/pyproject.toml
index 9c4d491..bb06042 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ lint = [
   "mypy",
   # NOTE(ww): ruff is under active development, so we pin conservatively here
   # and let Dependabot periodically perform this update.
-  "ruff < 0.5.5",
+  "ruff < 0.5.6",
   "types-requests",
 ]
 dev = ["build", "bump >= 1.3.2", "id[test,lint]"]