diff --git a/pyproject.toml b/pyproject.toml
index 3fe0463..4134aab 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,3 +30,7 @@ schemainspect = 'schemainspect:do_command'
 
 [tool.isort]
 profile = "black"
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"