diff --git a/tsapython/pyproject.toml b/tsapython/pyproject.toml
index 87903d7..88131ad 100644
--- a/tsapython/pyproject.toml
+++ b/tsapython/pyproject.toml
@@ -43,7 +43,7 @@ test = [
 "Web UI" = "https://lc-linkous.github.io/tinysa-web/"
 
 [build-system]
-requires = ["uv_build>=0.8.11,<0.9.0"]
+requires = ["uv_build>=0.8.11,<0.14.0"]
 build-backend = "uv_build"
 
 [tool.pytest.ini_options]