diff --git a/pyproject.toml b/pyproject.toml
index c023e72..8c9a9e1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dev = [
 sillystrings = "sillystrings.cli:main"
 
 [build-system]
-requires = ["uv_build>=0.12.0,<0.13.0"]
+requires = ["uv_build>=0.12.0,<0.14.0"]
 build-backend = "uv_build"
 
 # --------------------------------------------------------------------------- #