Index: pyproject.toml
--- pyproject.toml.orig
+++ pyproject.toml
@@ -34,5 +34,5 @@ pylint = "^2.4.4"
 flake8 = "*"
 
 [build-system]
-requires = ["poetry>=1.0.0b1"]
-build-backend = "poetry.masonry.api"
+requires = ["poetry-core>=1.0.0b1"]
+build-backend = "poetry.core.masonry.api"