diff --git a/pyproject.toml b/pyproject.toml
index feb2f5e..d017609 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,4 +1,4 @@
-[build-systems]
+[build-system]
 requires = ["setuptools >= 61"]
 build-backend = "setuptools.build_meta"