diff --git a/pyproject.toml b/pyproject.toml
index 1509f88..e984dc5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,4 +19,4 @@ pytest-benchmark = "^3.2.3"
 
 [build-system]
 requires = ["poetry>=0.12"]
-build-backend = "poetry.masonry.api"
+build-backend = "poetry.core.masonry.api"