diff --git a/bench/pyproject.toml b/bench/pyproject.toml
index cfa2883..fa7ed1b 100644
--- a/bench/pyproject.toml
+++ b/bench/pyproject.toml
@@ -26,7 +26,7 @@ timebench = "timebench.cli:main"
 # The scripts stay plain files (python run.py, python v0/small.py, ...); the code they share is the
 # `timebench` package next to them, installed editable by `uv sync`.
 [build-system]
-requires = ["uv_build>=0.9,<0.13"]
+requires = ["uv_build>=0.13.1,<0.14"]
 build-backend = "uv_build"
 
 [tool.uv.build-backend]