diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 5ec2ba9..e9b02b7 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -24,7 +24,6 @@ jobs:
           - "3.11"
           - "3.10"
           - "3.9"
-          - "3.8"
           - type
           - dev
           - pkg_meta
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 92fbc50..c332adf 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -13,7 +13,7 @@ repos:
     rev: v2.3.0
     hooks:
       - id: codespell
-        additional_dependencies: ["tomli>=2.0.1"]
+        additional_dependencies: ["tomli>=2.0.2"]
   - repo: https://github.com/tox-dev/tox-ini-fmt
     rev: "1.4.1"
     hooks:
diff --git a/pyproject.toml b/pyproject.toml
index 5a79a13..36aae35 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,13 +17,12 @@ license.file = "LICENSE.txt"
 authors = [
   { name = "Bernat Gabor", email = "gaborjbernat@gmail.com" },
 ]
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 classifiers = [
   "License :: OSI Approved :: MIT License",
   "Operating System :: OS Independent",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
@@ -34,19 +33,19 @@ dynamic = [
   "version",
 ]
 dependencies = [
-  "pyproject-fmt-rust==1.1.6",
-  "tomli>=2.0.1; python_version<'3.11'",
+  "pyproject-fmt-rust==1.2",
+  "tomli>=2.0.2; python_version<'3.11'",
 ]
 optional-dependencies.docs = [
   "furo>=2024.8.6",
   "sphinx>=8.0.2",
-  "sphinx-argparse-cli>=1.17",
-  "sphinx-autodoc-typehints>=2.4",
+  "sphinx-argparse-cli>=1.18.2",
+  "sphinx-autodoc-typehints>=2.4.4",
   "sphinx-copybutton>=0.5.2",
 ]
 optional-dependencies.test = [
   "covdefaults>=2.3",
-  "pytest>=8.3.2",
+  "pytest>=8.3.3",
   "pytest-cov>=5",
   "pytest-mock>=3.14",
 ]
@@ -69,7 +68,7 @@ build.targets.sdist.include = [
 version.source = "vcs"
 
 [tool.ruff]
-target-version = "py38"
+target-version = "py39"
 line-length = 120
 format.preview = true
 format.docstring-code-line-length = 100
diff --git a/src/pyproject_fmt/__main__.py b/src/pyproject_fmt/__main__.py
index ec400be..4b74ace 100644
--- a/src/pyproject_fmt/__main__.py
+++ b/src/pyproject_fmt/__main__.py
@@ -5,13 +5,15 @@
 import difflib
 import sys
 from pathlib import Path
-from typing import TYPE_CHECKING, Iterable, Sequence
+from typing import TYPE_CHECKING
 
 from pyproject_fmt_rust import format_toml
 
 from pyproject_fmt.cli import cli_args
 
 if TYPE_CHECKING:
+    from collections.abc import Iterable, Sequence
+
     from pyproject_fmt.cli import Config
 
 GREEN = "\u001b[32m"
diff --git a/src/pyproject_fmt/cli.py b/src/pyproject_fmt/cli.py
index 090d6be..3cfc540 100644
--- a/src/pyproject_fmt/cli.py
+++ b/src/pyproject_fmt/cli.py
@@ -13,10 +13,13 @@
 from dataclasses import dataclass
 from importlib.metadata import version
 from pathlib import Path
-from typing import Sequence
+from typing import TYPE_CHECKING
 
 from pyproject_fmt_rust import Settings
 
+if TYPE_CHECKING:
+    from collections.abc import Sequence
+
 if sys.version_info >= (3, 11):  # pragma: >=3.11 cover
     import tomllib
 else:  # pragma: <3.11 cover
@@ -80,12 +83,12 @@ def pyproject_toml_path_creator(argument: str) -> Path | None:
 def _version_argument(got: str) -> tuple[int, int]:
     parts = got.split(".")
     if len(parts) != 2:  # noqa: PLR2004
-        msg = f"invalid version: {got}, must be e.g. 3.12"
+        msg = f"invalid version: {got}, must be e.g. 3.13"
         raise ArgumentTypeError(msg)
     try:
         return int(parts[0]), int(parts[1])
     except ValueError as exc:
-        msg = f"invalid version: {got} due {exc!r}, must be e.g. 3.12"
+        msg = f"invalid version: {got} due {exc!r}, must be e.g. 3.13"
         raise ArgumentTypeError(msg) from exc
 
 
@@ -136,7 +139,7 @@ def _build_cli() -> ArgumentParser:
         "--max-supported-python",
         metavar="minor.major",
         type=_version_argument,
-        default=(3, 12),
+        default=(3, 13),
         help="latest Python version the project supports (e.g. 3.13)",
     )
 
@@ -190,7 +193,7 @@ def cli_args(args: Sequence[str]) -> list[Config]:
                     indent=indent,
                     keep_full_version=keep_full_version,
                     max_supported_python=max_supported_python,
-                    min_supported_python=(3, 8),  # default for when the user did not specify via requires-python
+                    min_supported_python=(3, 9),  # default for when the user did not specify via requires-python
                 ),
             )
         )
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 5f2a998..bbc3fa4 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -33,7 +33,7 @@ def test_cli_invalid_version(capsys: pytest.CaptureFixture[str], tmp_path: Path)
     assert context.value.code == 2
     out, err = capsys.readouterr()
     assert not out
-    assert "error: argument --max-supported-python: invalid version: 3, must be e.g. 3.12\n" in err
+    assert "error: argument --max-supported-python: invalid version: 3, must be e.g. 3.13\n" in err
 
 
 def test_cli_invalid_version_value(capsys: pytest.CaptureFixture[str], tmp_path: Path) -> None:
diff --git a/tests/test_main.py b/tests/test_main.py
index bd91196..ee3bc25 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -175,7 +175,7 @@ def test_keep_full_version_cli(tmp_path: Path) -> None:
     [project]
     classifiers = [
       "Programming Language :: Python :: 3 :: Only",
-      "Programming Language :: Python :: 3.8",
+      "Programming Language :: Python :: 3.9",
     ]
     dependencies = [
       "a==1.0.0",
@@ -186,7 +186,7 @@ def test_keep_full_version_cli(tmp_path: Path) -> None:
     """
     pyproject_toml = tmp_path / "pyproject.toml"
     pyproject_toml.write_text(dedent(start))
-    args = [str(pyproject_toml), "--keep-full-version", "--max-supported-python", "3.8"]
+    args = [str(pyproject_toml), "--keep-full-version", "--max-supported-python", "3.9"]
     run(args)
     output = pyproject_toml.read_text()
     assert output == dedent(start)
@@ -212,7 +212,7 @@ def test_pyproject_toml_config(tmp_path: Path, capsys: pytest.CaptureFixture[str
     column_width = 20
     indent = 4
     keep_full_version = true
-    max_supported_python = "3.10"
+    max_supported_python = "3.11"
     ignore_extra = true
     """
     filename = tmp_path / "pyproject.toml"
@@ -226,9 +226,9 @@ def test_pyproject_toml_config(tmp_path: Path, capsys: pytest.CaptureFixture[str
     ]
     classifiers = [
         "Programming Language :: Python :: 3 :: Only",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
     ]
     dynamic = [
         "B",
@@ -241,7 +241,7 @@ def test_pyproject_toml_config(tmp_path: Path, capsys: pytest.CaptureFixture[str
     column_width = 20
     indent = 4
     keep_full_version = true
-    max_supported_python = "3.10"
+    max_supported_python = "3.11"
     ignore_extra = true
     """
     got = filename.read_text()
diff --git a/tox.ini b/tox.ini
index 3928a25..6abd338 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,7 +9,6 @@ env_list =
     3.11
     3.10
     3.9
-    3.8
     type
     docs
     pkg_meta
@@ -35,7 +34,7 @@ commands =
 description = run static analysis and style check using flake8
 skip_install = true
 deps =
-    pre-commit-uv>=4.1.1
+    pre-commit-uv>=4.1.3
 commands =
     pre-commit run --all-files --show-diff-on-failure
     python -c 'print("hint: run {envdir}/bin/pre-commit install to add checks as pre-commit hook")'
@@ -64,7 +63,7 @@ skip_install = true
 deps =
     check-wheel-contents>=0.6
     twine>=5.1.1
-    uv>=0.4.10
+    uv>=0.4.18
 commands =
     uv build --sdist --wheel --out-dir {env_tmp_dir} .
     twine check {env_tmp_dir}{/}*