diff --git a/pyproject.toml b/pyproject.toml
index 9e8527c..976ffc9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
-requires = [ "poetry>=0.12",]
-build-backend = "poetry.masonry.api"
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "varname"