diff --git a/pyproject.toml b/pyproject.toml
index eb51c41..e01bd50 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -81,6 +81,13 @@ src = ["scripts", "src", "tests"]
 [tool.ruff.lint]
 select = ["B", "C4", "E", "F", "I", "RUF", "SIM", "UP", "W"]
 
+[tool.ruff.lint.isort]
+required-imports = ["from __future__ import annotations"]
+
+[tool.ruff.lint.per-file-ignores]
+"scripts/**" = ["I002"]
+"tests/**" = ["I002"]
+
 [tool.mypy]
 strict = true
 python_version = "3.11"
diff --git a/src/sil_lift/_extras.py b/src/sil_lift/_extras.py
index f17c6e7..5636cd9 100644
--- a/src/sil_lift/_extras.py
+++ b/src/sil_lift/_extras.py
@@ -16,6 +16,8 @@
 — so the internal representation stays swappable and no lxml type ever leaks.
 """
 
+from __future__ import annotations
+
 from dataclasses import dataclass, field
 
 __all__ = ["Extras"]