diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 473cc04a2..ee8d422fd 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -25,7 +25,7 @@ repos:
         exclude: "^tests"
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.12.2
+    rev: v0.12.7
     hooks:
       - id: ruff
         args: ["--fix", "--show-fixes"]
@@ -59,7 +59,7 @@ repos:
         exclude: "^tests|src/scikit_build_core/resources/scikit-build.schema.json|^docs/projects.md"
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.16.1
+    rev: v1.17.1
     hooks:
       - id: mypy
         exclude: |
@@ -131,7 +131,7 @@ repos:
         additional_dependencies: ["cogapp>=3.5"]
 
   - repo: https://github.com/henryiii/validate-pyproject-schema-store
-    rev: 2025.06.23
+    rev: 2025.07.28
     hooks:
       - id: validate-pyproject
 
diff --git a/pyproject.toml b/pyproject.toml
index ddb9543eb..22785c4da 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -177,7 +177,7 @@ exclude = [
     '^tests/packages/extensionlib/*',
 ]
 mypy_path = ["$MYPY_CONFIG_FILE_DIR/src", "$MYPY_CONFIG_FILE_DIR/tests/utils"]
-python_version = "3.8"
+python_version = "3.9"
 warn_unused_configs = true
 warn_unreachable = false
 enable_error_code = ["ignore-without-code", "redundant-expr", "truthy-bool"]
diff --git a/src/scikit_build_core/builder/builder.py b/src/scikit_build_core/builder/builder.py
index d05065fe8..dde36ddab 100644
--- a/src/scikit_build_core/builder/builder.py
+++ b/src/scikit_build_core/builder/builder.py
@@ -7,7 +7,7 @@
 import sys
 import sysconfig
 from pathlib import Path
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Any
 
 from .. import __version__
 from .._compat.importlib import metadata, resources
@@ -85,7 +85,7 @@ def _filter_env_cmake_args(env_cmake_args: list[str]) -> Generator[str, None, No
             yield arg
 
 
-def _sanitize_path(path: os.PathLike[str]) -> list[Path]:
+def _sanitize_path(path: Any) -> list[Path]:
     # This handles classes like:
     # MultiplexedPath from importlib.resources.readers (3.11+)
     # MultiplexedPath from importlib.readers (3.10)
diff --git a/tests/test_editable.py b/tests/test_editable.py
index 573686052..9ff5b52dc 100644
--- a/tests/test_editable.py
+++ b/tests/test_editable.py
@@ -1,10 +1,12 @@
+from __future__ import annotations
+
 import platform
 import sys
 import textwrap
 from pathlib import Path
 
 import pytest
-from conftest import PackageInfo, process_package
+from conftest import PackageInfo, VEnv, process_package
 
 
 @pytest.mark.compile
@@ -160,8 +162,12 @@ def test_install_dir(isolated):
 
 
 def _setup_package_for_editable_layout_tests(
-    monkeypatch, tmp_path, editable, editable_mode, isolated
-):
+    monkeypatch: pytest.MonkeyPatch,
+    tmp_path: Path,
+    editable: bool,
+    editable_mode: str,
+    isolated: VEnv,
+) -> None:
     editable_flag = ["-e"] if editable else []
 
     config_mode_flags = []
@@ -177,6 +183,8 @@ def _setup_package_for_editable_layout_tests(
         package = PackageInfo("importlib_editable")
         process_package(package, tmp_path, m)
 
+        assert isolated.wheelhouse
+
         ninja = [
             "ninja"
             for f in isolated.wheelhouse.iterdir()
@@ -211,7 +219,7 @@ def test_direct_import(monkeypatch, tmp_path, editable, editable_mode, isolated)
     if platform.system() == "Windows" and editable_mode == "inplace":
         pytest.xfail("Windows fails to import the top-level extension module")
 
-    _setup_package_for_editable_layout_tests(  # type: ignore[no-untyped-call]
+    _setup_package_for_editable_layout_tests(
         monkeypatch, tmp_path, editable, editable_mode, isolated
     )
     isolated.execute("import pkg")