--- pyproject.toml.orig	2022-06-08 17:54:37 UTC
+++ pyproject.toml
@@ -9,3 +9,7 @@ packages = [{ include = "contextlib_chdir.*" }, { incl
 
 [tool.poetry.dependencies]
 python = "^3.6"
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"