diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d0a5b44af..77a82d0ae 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -40,7 +40,7 @@ jobs:
         python_version: ['3.12']
         include:
         - os: ubuntu-latest
-          python_version: '3.10'
+          python_version: '3.11'
     timeout-minutes: 180
     steps:
     - uses: actions/checkout@v4
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 3f43ac2e2..58c697ba5 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -24,9 +24,9 @@ repos:
   rev: v1.10.0
   hooks:
   - id: mypy
-    name: mypy 3.10 on cibuildwheel/
+    name: mypy 3.11 on cibuildwheel/
     exclude: ^cibuildwheel/resources/.*py|bin/generate_schema.py$
-    args: ["--python-version=3.10"]
+    args: ["--python-version=3.11"]
     additional_dependencies: &mypy-dependencies
       - bracex
       - nox
diff --git a/bin/bump_version.py b/bin/bump_version.py
index e28bdcb97..2c56caff7 100755
--- a/bin/bump_version.py
+++ b/bin/bump_version.py
@@ -11,17 +11,13 @@
 import os
 import subprocess
 import sys
+import tomllib
 import urllib.parse
 from pathlib import Path
 
 import click
 from packaging.version import InvalidVersion, Version
 
-if sys.version_info < (3, 11):
-    import tomli as tomllib
-else:
-    import tomllib
-
 config = [
     # file path, version find/replace format
     ("pyproject.toml", 'version = "{}"'),
diff --git a/bin/update_nodejs.py b/bin/update_nodejs.py
index c2cb1c0f0..8a08274ae 100755
--- a/bin/update_nodejs.py
+++ b/bin/update_nodejs.py
@@ -4,6 +4,7 @@
 
 import difflib
 import logging
+import tomllib
 from dataclasses import dataclass
 from pathlib import Path
 from typing import Final
@@ -16,8 +17,6 @@
 from rich.logging import RichHandler
 from rich.syntax import Syntax
 
-from cibuildwheel._compat import tomllib
-
 log = logging.getLogger("cibw")
 
 # Looking up the dir instead of using utils.resources_dir
diff --git a/bin/update_pythons.py b/bin/update_pythons.py
index 2d295c320..5921b427b 100755
--- a/bin/update_pythons.py
+++ b/bin/update_pythons.py
@@ -5,6 +5,7 @@
 import copy
 import difflib
 import logging
+import tomllib
 from collections.abc import Mapping, MutableMapping
 from pathlib import Path
 from typing import Any, Final, Literal, TypedDict
@@ -17,7 +18,6 @@
 from rich.logging import RichHandler
 from rich.syntax import Syntax
 
-from cibuildwheel._compat import tomllib
 from cibuildwheel.extra import dump_python_configurations
 
 log = logging.getLogger("cibw")
diff --git a/bin/update_virtualenv.py b/bin/update_virtualenv.py
index fc69cf63d..480e1714e 100755
--- a/bin/update_virtualenv.py
+++ b/bin/update_virtualenv.py
@@ -5,6 +5,7 @@
 import difflib
 import logging
 import subprocess
+import tomllib
 from dataclasses import dataclass
 from pathlib import Path
 from typing import Final
@@ -15,8 +16,6 @@
 from rich.logging import RichHandler
 from rich.syntax import Syntax
 
-from cibuildwheel._compat import tomllib
-
 log = logging.getLogger("cibw")
 
 # Looking up the dir instead of using utils.resources_dir
diff --git a/cibuildwheel/__main__.py b/cibuildwheel/__main__.py
index a409d725b..d885f39ea 100644
--- a/cibuildwheel/__main__.py
+++ b/cibuildwheel/__main__.py
@@ -12,7 +12,7 @@
 from collections.abc import Iterable, Sequence, Set
 from pathlib import Path
 from tempfile import mkdtemp
-from typing import Protocol
+from typing import Protocol, assert_never
 
 import cibuildwheel
 import cibuildwheel.linux
@@ -21,7 +21,6 @@
 import cibuildwheel.util
 import cibuildwheel.windows
 from cibuildwheel import errors
-from cibuildwheel._compat.typing import assert_never
 from cibuildwheel.architecture import Architecture, allowed_architectures_check
 from cibuildwheel.logger import log
 from cibuildwheel.options import CommandLineArguments, Options, compute_options
diff --git a/cibuildwheel/_compat/__init__.py b/cibuildwheel/_compat/__init__.py
deleted file mode 100644
index 9d48db4f9..000000000
--- a/cibuildwheel/_compat/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-from __future__ import annotations
diff --git a/cibuildwheel/_compat/tomllib.py b/cibuildwheel/_compat/tomllib.py
deleted file mode 100644
index b061ba911..000000000
--- a/cibuildwheel/_compat/tomllib.py
+++ /dev/null
@@ -1,10 +0,0 @@
-from __future__ import annotations
-
-import sys
-
-if sys.version_info >= (3, 11):
-    from tomllib import load, loads
-else:
-    from tomli import load, loads
-
-__all__ = ["load", "loads"]
diff --git a/cibuildwheel/_compat/typing.py b/cibuildwheel/_compat/typing.py
deleted file mode 100644
index 05bae73e0..000000000
--- a/cibuildwheel/_compat/typing.py
+++ /dev/null
@@ -1,14 +0,0 @@
-from __future__ import annotations
-
-import sys
-
-if sys.version_info < (3, 11):
-    from typing_extensions import NotRequired, Self, assert_never
-else:
-    from typing import NotRequired, Self, assert_never
-
-__all__ = (
-    "assert_never",
-    "NotRequired",
-    "Self",
-)
diff --git a/cibuildwheel/architecture.py b/cibuildwheel/architecture.py
index 75def59c5..e50f5b9a5 100644
--- a/cibuildwheel/architecture.py
+++ b/cibuildwheel/architecture.py
@@ -6,9 +6,8 @@
 import sys
 from collections.abc import Set
 from enum import Enum
-from typing import Final, Literal
+from typing import Final, Literal, assert_never
 
-from ._compat.typing import assert_never
 from .typing import PlatformName
 
 PRETTY_NAMES: Final[dict[PlatformName, str]] = {
diff --git a/cibuildwheel/linux.py b/cibuildwheel/linux.py
index a13a557aa..ffc930dea 100644
--- a/cibuildwheel/linux.py
+++ b/cibuildwheel/linux.py
@@ -7,11 +7,11 @@
 from collections.abc import Iterable, Iterator, Sequence, Set
 from dataclasses import dataclass
 from pathlib import Path, PurePath, PurePosixPath
+from typing import assert_never
 
 from packaging.version import Version
 
 from . import errors
-from ._compat.typing import assert_never
 from .architecture import Architecture
 from .logger import log
 from .oci_container import OCIContainer, OCIContainerEngineConfig
diff --git a/cibuildwheel/macos.py b/cibuildwheel/macos.py
index cae37e210..66d60ff16 100644
--- a/cibuildwheel/macos.py
+++ b/cibuildwheel/macos.py
@@ -11,13 +11,12 @@
 from collections.abc import Sequence, Set
 from dataclasses import dataclass
 from pathlib import Path
-from typing import Literal
+from typing import Literal, assert_never
 
 from filelock import FileLock
 from packaging.version import Version
 
 from . import errors
-from ._compat.typing import assert_never
 from .architecture import Architecture
 from .environment import ParsedEnvironment
 from .logger import log
diff --git a/cibuildwheel/oci_container.py b/cibuildwheel/oci_container.py
index c0c8d2281..85003e7e0 100644
--- a/cibuildwheel/oci_container.py
+++ b/cibuildwheel/oci_container.py
@@ -14,9 +14,8 @@
 from dataclasses import dataclass, field
 from pathlib import Path, PurePath, PurePosixPath
 from types import TracebackType
-from typing import IO, Literal
+from typing import IO, Literal, Self
 
-from ._compat.typing import Self
 from .typing import PathOrStr, PopenBytes
 from .util import (
     CIProvider,
diff --git a/cibuildwheel/options.py b/cibuildwheel/options.py
index 52dfa63ef..d1f2aae3c 100644
--- a/cibuildwheel/options.py
+++ b/cibuildwheel/options.py
@@ -9,6 +9,7 @@
 import functools
 import shlex
 import textwrap
+import tomllib
 from collections.abc import (
     Callable,
     Generator,
@@ -19,13 +20,11 @@
     Set,
 )
 from pathlib import Path
-from typing import Any, Literal, TypedDict
+from typing import Any, Literal, NotRequired, TypedDict, assert_never
 
 from packaging.specifiers import SpecifierSet
 
 from . import errors
-from ._compat import tomllib
-from ._compat.typing import NotRequired, assert_never
 from .architecture import Architecture
 from .environment import EnvironmentParseError, ParsedEnvironment, parse_environment
 from .logger import log
diff --git a/cibuildwheel/projectfiles.py b/cibuildwheel/projectfiles.py
index 73593fc74..839d99953 100644
--- a/cibuildwheel/projectfiles.py
+++ b/cibuildwheel/projectfiles.py
@@ -3,10 +3,9 @@
 import ast
 import configparser
 import contextlib
+import tomllib
 from pathlib import Path
 
-from ._compat import tomllib
-
 
 def get_parent(node: ast.AST | None, depth: int = 1) -> ast.AST | None:
     for _ in range(depth):
diff --git a/cibuildwheel/util.py b/cibuildwheel/util.py
index 223e39be0..3c3869af5 100644
--- a/cibuildwheel/util.py
+++ b/cibuildwheel/util.py
@@ -13,6 +13,7 @@
 import tarfile
 import textwrap
 import time
+import tomllib
 import typing
 import urllib.request
 from collections import defaultdict
@@ -35,7 +36,6 @@
 from packaging.version import Version
 from platformdirs import user_cache_path
 
-from ._compat import tomllib
 from .architecture import Architecture
 from .typing import PathOrStr, PlatformName
 
diff --git a/cibuildwheel/windows.py b/cibuildwheel/windows.py
index 6b07e534a..fd385be58 100644
--- a/cibuildwheel/windows.py
+++ b/cibuildwheel/windows.py
@@ -9,12 +9,12 @@
 from dataclasses import dataclass
 from functools import cache
 from pathlib import Path
+from typing import assert_never
 
 from filelock import FileLock
 from packaging.version import Version
 
 from . import errors
-from ._compat.typing import assert_never
 from .architecture import Architecture
 from .environment import ParsedEnvironment
 from .logger import log
diff --git a/pyproject.toml b/pyproject.toml
index 5e34e95e3..85623baa6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ version = "2.19.1"
 description = "Build Python wheels on CI with minimal configuration."
 readme = "README.md"
 license = "BSD-2-Clause"
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 authors = [
     { name = "Joe Rickerby", email = "joerick@mac.com" },
 ]
@@ -30,7 +30,6 @@ classifiers = [
     "Natural Language :: English",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: Implementation :: CPython",
@@ -42,9 +41,7 @@ dependencies = [
     "certifi",
     "filelock",
     "packaging>=20.9",
-    "platformdirs",
-    "tomli;python_version < '3.11'",
-    "typing-extensions>=4.1.0;python_version < '3.11'",
+    "platformdirs"
 ]
 
 [project.optional-dependencies]
@@ -104,7 +101,7 @@ log_cli_level = "info"
 
 
 [tool.mypy]
-python_version = "3.10"
+python_version = "3.11"
 files = [
     "cibuildwheel/*.py",
     "test/**/*.py",
@@ -147,7 +144,7 @@ ignore_missing_imports = true
 
 
 [tool.pylint]
-py-version = "3.10"
+py-version = "3.11"
 jobs = "0"
 fail-on = ["E", "F"]
 fail-under = "9.8"
@@ -184,7 +181,7 @@ messages_control.disable = [
 ]
 
 [tool.ruff]
-target-version = "py310"
+target-version = "py311"
 line-length = 100
 
 
@@ -220,7 +217,6 @@ ignore = [
   "PYI025", # Set as AbstractSet
   "ISC001", # Conflicts with formatter
 ]
-typing-modules = ["cibuildwheel._compat.typing"]
 flake8-unused-arguments.ignore-variadic-names = true
 
 [tool.ruff.lint.flake8-tidy-imports.banned-api]
@@ -229,14 +225,9 @@ flake8-unused-arguments.ignore-variadic-names = true
 "typing.Iterator".msg = "Use collections.abc.Iterator instead."
 "typing.Sequence".msg = "Use collections.abc.Sequence instead."
 "typing.Set".msg = "Use collections.abc.Set instead."
-"typing.NotRequired".msg = "Use cibuildwheel._compat.typing.NotRequired instead."
-"typing.assert_never".msg = "Use cibuildwheel._compat.typing.assert_never instead."
-"tomllib".msg = "Use cibuildwheel._compat.tomllib instead."
-"tomli".msg = "Use cibuildwheel._compat.tomllib instead."
 
 [tool.ruff.lint.per-file-ignores]
 "unit_test/*" = ["PLC1901"]
-"cibuildwheel/_compat/**.py" = ["TID251"]
 "bin/*" = ["TID251"]
 
 [tool.repo-review]
diff --git a/unit_test/build_ids_test.py b/unit_test/build_ids_test.py
index a42af93de..0a444e85c 100644
--- a/unit_test/build_ids_test.py
+++ b/unit_test/build_ids_test.py
@@ -1,8 +1,9 @@
 from __future__ import annotations
 
+import tomllib
+
 from packaging.version import Version
 
-from cibuildwheel._compat import tomllib
 from cibuildwheel.extra import Printable, dump_python_configurations
 from cibuildwheel.util import resources_dir
 
diff --git a/unit_test/main_tests/main_options_test.py b/unit_test/main_tests/main_options_test.py
index acd37c1bc..979dc9d1b 100644
--- a/unit_test/main_tests/main_options_test.py
+++ b/unit_test/main_tests/main_options_test.py
@@ -1,13 +1,13 @@
 from __future__ import annotations
 
 import sys
+import tomllib
 from fnmatch import fnmatch
 from pathlib import Path
 
 import pytest
 
 from cibuildwheel.__main__ import main
-from cibuildwheel._compat import tomllib
 from cibuildwheel.environment import ParsedEnvironment
 from cibuildwheel.options import BuildOptions, _get_pinned_container_images
 from cibuildwheel.util import BuildSelector, resources_dir, split_config_settings
diff --git a/unit_test/validate_schema_test.py b/unit_test/validate_schema_test.py
index 698353990..25dc2c347 100644
--- a/unit_test/validate_schema_test.py
+++ b/unit_test/validate_schema_test.py
@@ -1,13 +1,12 @@
 from __future__ import annotations
 
 import re
+import tomllib
 from pathlib import Path
 
 import pytest
 import validate_pyproject.api
 
-from cibuildwheel._compat import tomllib
-
 DIR = Path(__file__).parent.resolve()