diff --git a/pyproject.toml b/pyproject.toml
index 6daf90b..38c2199 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -43,7 +43,7 @@ documentation = "https://shaperglot.readthedocs.io"
 repository = "https://github.com/simoncozens/shaperglot"
 
 [build-system]
-requires = ["setuptools>=69.5.1", "setuptools_scm[toml]>=8.1.0"]
+requires = ["setuptools>=73.0.1", "setuptools_scm[toml]>=8.1.0"]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools.packages.find]