diff --git a/pyproject.toml b/pyproject.toml
index 9e35679..90ec106 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,7 @@
+[build-system]
+requires = ["setuptools"]
+build-backend = "setuptools.build_meta"
+
 [tool.black]
 include = '\.pyi?$'
 exclude = '''