diff --git a/end_to_end_tests/golden-record/pyproject.toml b/end_to_end_tests/golden-record/pyproject.toml
index 027c6f05e..1e77df4ce 100644
--- a/end_to_end_tests/golden-record/pyproject.toml
+++ b/end_to_end_tests/golden-record/pyproject.toml
@@ -18,8 +18,8 @@ attrs = ">=20.1.0,<22.0.0"
 python-dateutil = "^2.8.0"
 
 [build-system]
-requires = ["poetry>=1.0"]
-build-backend = "poetry.masonry.api"
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"
 
 [tool.black]
 line-length = 120
diff --git a/openapi_python_client/templates/pyproject.toml.jinja b/openapi_python_client/templates/pyproject.toml.jinja
index a64a8c759..0f104dccd 100644
--- a/openapi_python_client/templates/pyproject.toml.jinja
+++ b/openapi_python_client/templates/pyproject.toml.jinja
@@ -19,8 +19,8 @@ attrs = ">=20.1.0,<22.0.0"
 python-dateutil = "^2.8.0"
 
 [build-system]
-requires = ["poetry>=1.0"]
-build-backend = "poetry.masonry.api"
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"
 
 {% endif %}
 [tool.black]