diff --git a/pyproject.toml b/pyproject.toml
index 95b9dae..0bcb0dd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -84,7 +84,7 @@ Documentation = "https://github.com/finite-sample/rmcp#readme"
 Issues = "https://github.com/finite-sample/rmcp/issues"
 
 [build-system]
-requires = ["uv_build>=0.12.5,<0.13"]
+requires = ["uv_build>=0.12.5,<0.14"]
 build-backend = "uv_build"
 
 [tool.uv.build-backend]