diff --git a/pyproject.toml b/pyproject.toml
index 0f202839..e3d899c9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -132,6 +132,7 @@ select = [
 [tool.ruff.lint.isort]
 force-sort-within-sections = true
 known-first-party = ["geovista"]
+required-imports = ["from __future__ import annotations"]
 
 
 [tool.ruff.lint.mccabe]
diff --git a/setup.py b/setup.py
index d63367fa..da0fbd21 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 """geovista setuptools packaging."""
-
+from __future__ import annotations
 
 from setuptools import setup
 
diff --git a/tests/plotting/test_examples.py b/tests/plotting/test_examples.py
index 317a1f58..839ab108 100644
--- a/tests/plotting/test_examples.py
+++ b/tests/plotting/test_examples.py
@@ -1,4 +1,6 @@
 """Unit-tests for :mod:`geovista.examples`."""
+from __future__ import annotations
+
 import importlib
 import os
 from pathlib import Path