diff --git a/tests/test_builder.py b/tests/test_builder.py
index 200569d..8dfdef9 100644
--- a/tests/test_builder.py
+++ b/tests/test_builder.py
@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+from collections.abc import Callable
 from pathlib import Path
 from typing import override
 from unittest.mock import patch
@@ -18,7 +19,8 @@ from bulkgen.builder import (
 from bulkgen.config import ProjectConfig, TargetConfig, TargetType
 from bulkgen.providers import Provider
 from bulkgen.state import load_state
-from tests.conftest import WriteConfig
+
+WriteConfig = Callable[[dict[str, object]], ProjectConfig]
 
 
 class FakeProvider(Provider):
diff --git a/tests/test_graph.py b/tests/test_graph.py
index e95a97e..e9d16f7 100644
--- a/tests/test_graph.py
+++ b/tests/test_graph.py
@@ -2,13 +2,15 @@
 
 from __future__ import annotations
 
+from collections.abc import Callable
 from pathlib import Path
 
 import pytest
 
 from bulkgen.config import ProjectConfig
 from bulkgen.graph import build_graph, get_build_order, get_subgraph_for_target
-from tests.conftest import WriteConfig
+
+WriteConfig = Callable[[dict[str, object]], ProjectConfig]
 
 
 class TestBuildGraph: