diff --git a/pyproject.toml b/pyproject.toml
index f27dc047..903e4532 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,5 +60,4 @@ markdown = ["markdown"]
 pelican = "pelican.__main__:main"
 
 [build-system]
-requires = ["poetry>=0.12"]
-build-backend = "poetry.masonry.api"
+requires = ["setuptools >= 40.6.0", "wheel"]