diff --git a/conftest.py b/conftest.py
index 1fb508556..7869bab15 100644
--- a/conftest.py
+++ b/conftest.py
@@ -1,10 +1,11 @@
 """Setup for Sybil."""
 
-import io  # noqa: TC003
+from __future__ import annotations
+
 import uuid
-from collections.abc import Generator  # noqa: TC003
 from doctest import ELLIPSIS
 from pathlib import Path
+from typing import TYPE_CHECKING
 
 import pytest
 from mock_vws import MockVWS
@@ -16,6 +17,10 @@
     PythonCodeBlockParser,
 )
 
+if TYPE_CHECKING:
+    import io
+    from collections.abc import Generator
+
 
 @pytest.fixture(name="make_image_file")
 def fixture_make_image_file(