diff --git a/mknodes/basenodes/_mkdocstrings/__init__.py b/mknodes/basenodes/_mkdocstrings/__init__.py
index 1b11f305..bbbc9238 100644
--- a/mknodes/basenodes/_mkdocstrings/__init__.py
+++ b/mknodes/basenodes/_mkdocstrings/__init__.py
@@ -1,15 +1,17 @@
 from __future__ import annotations
 
 from collections.abc import Callable
-import os
 import types
 
 import griffe
-from typing import Any, Literal
+from typing import Any, Literal, TYPE_CHECKING
 
 from mknodes.basenodes import mknode
 from mknodes.utils import classhelpers, log, reprhelpers, resources
 
+if TYPE_CHECKING:
+    import os
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/basenodes/mkadmonition/__init__.py b/mknodes/basenodes/mkadmonition/__init__.py
index 7ad05690..f2c41f9a 100644
--- a/mknodes/basenodes/mkadmonition/__init__.py
+++ b/mknodes/basenodes/mkadmonition/__init__.py
@@ -2,12 +2,14 @@
 
 import textwrap
 
-from typing import Any, Literal
+from typing import Any, Literal, TYPE_CHECKING
 
 from mknodes.basenodes import mkcontainer, mknode
-from mknodes.data import datatypes
 from mknodes.utils import log, resources
 
+if TYPE_CHECKING:
+    from mknodes.data import datatypes
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/basenodes/mkbinaryimage/__init__.py b/mknodes/basenodes/mkbinaryimage/__init__.py
index 158c1210..edcde1ed 100644
--- a/mknodes/basenodes/mkbinaryimage/__init__.py
+++ b/mknodes/basenodes/mkbinaryimage/__init__.py
@@ -1,16 +1,18 @@
 from __future__ import annotations
 
-import os
 import upath
 
-from typing import Any, Literal, Self
+from typing import Any, Literal, Self, TYPE_CHECKING
 
 from jinjarope import textfilters
 
 from mknodes.basenodes import mkimage
-from mknodes.info import linkprovider
 from mknodes.utils import icons, log
 
+if TYPE_CHECKING:
+    from mknodes.info import linkprovider
+    import os
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/basenodes/mkclidoc/__init__.py b/mknodes/basenodes/mkclidoc/__init__.py
index d38380d0..120cc60a 100644
--- a/mknodes/basenodes/mkclidoc/__init__.py
+++ b/mknodes/basenodes/mkclidoc/__init__.py
@@ -1,12 +1,14 @@
 from __future__ import annotations
-import argparse
 
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.templatenodes import mktemplate
 from mknodes.utils import log
 from mknodes.info.cli import clihelpers, commandinfo
 
+if TYPE_CHECKING:
+    import argparse
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/basenodes/mkcode/__init__.py b/mknodes/basenodes/mkcode/__init__.py
index 720bcab8..bf6088e8 100644
--- a/mknodes/basenodes/mkcode/__init__.py
+++ b/mknodes/basenodes/mkcode/__init__.py
@@ -1,7 +1,6 @@
 from __future__ import annotations
 
 import inspect
-import os
 import textwrap
 import types
 
@@ -16,6 +15,7 @@
 
 
 if TYPE_CHECKING:
+    import os
     import mknodes as mk
 
 logger = log.get_logger(__name__)
diff --git a/mknodes/basenodes/mkcompactadmonition/__init__.py b/mknodes/basenodes/mkcompactadmonition/__init__.py
index d63b55de..b8ca3ded 100644
--- a/mknodes/basenodes/mkcompactadmonition/__init__.py
+++ b/mknodes/basenodes/mkcompactadmonition/__init__.py
@@ -1,11 +1,13 @@
 from __future__ import annotations
 
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.basenodes import mknode
-from mknodes.data import datatypes
 from mknodes.utils import log, resources, xmlhelpers
 
+if TYPE_CHECKING:
+    from mknodes.data import datatypes
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/basenodes/mkcontainer/__init__.py b/mknodes/basenodes/mkcontainer/__init__.py
index 67afd218..adf6bd19 100644
--- a/mknodes/basenodes/mkcontainer/__init__.py
+++ b/mknodes/basenodes/mkcontainer/__init__.py
@@ -1,12 +1,14 @@
 from __future__ import annotations
 
-from collections.abc import Iterator
 
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.basenodes import mknode
 from mknodes.utils import log
 
+if TYPE_CHECKING:
+    from collections.abc import Iterator
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/basenodes/mkdetailsblock/__init__.py b/mknodes/basenodes/mkdetailsblock/__init__.py
index f79ef820..620dafee 100644
--- a/mknodes/basenodes/mkdetailsblock/__init__.py
+++ b/mknodes/basenodes/mkdetailsblock/__init__.py
@@ -3,11 +3,11 @@
 from typing import TYPE_CHECKING, Any
 
 from mknodes.basenodes import mkblock
-from mknodes.data import datatypes
 from mknodes.utils import log, reprhelpers, resources
 
 
 if TYPE_CHECKING:
+    from mknodes.data import datatypes
     import mknodes as mk
 
 
diff --git a/mknodes/basenodes/mklist/__init__.py b/mknodes/basenodes/mklist/__init__.py
index 843344d9..16dea948 100644
--- a/mknodes/basenodes/mklist/__init__.py
+++ b/mknodes/basenodes/mklist/__init__.py
@@ -1,12 +1,14 @@
 from __future__ import annotations
 
-from collections.abc import Sequence
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.basenodes import mkcontainer, mknode
 from mknodes.info import linkprovider
 from mknodes.utils import log, resources
 
+if TYPE_CHECKING:
+    from collections.abc import Sequence
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/basenodes/mknode/__init__.py b/mknodes/basenodes/mknode/__init__.py
index 30bc532b..ac44b6b7 100644
--- a/mknodes/basenodes/mknode/__init__.py
+++ b/mknodes/basenodes/mknode/__init__.py
@@ -6,7 +6,6 @@
 from typing import TYPE_CHECKING, Any
 
 from mknodes.basenodes import processors
-from mknodes.data import datatypes
 from mknodes.info import contexts, nodefile
 from mknodes.jinja import nodeenvironment
 from mknodes.nodemods.modmanager import ModManager
@@ -15,6 +14,7 @@
 
 
 if TYPE_CHECKING:
+    from mknodes.data import datatypes
     import mknodes as mk
 
 
diff --git a/mknodes/basenodes/mktabcontainer.py b/mknodes/basenodes/mktabcontainer.py
index 22992a79..68e5ffe8 100644
--- a/mknodes/basenodes/mktabcontainer.py
+++ b/mknodes/basenodes/mktabcontainer.py
@@ -1,12 +1,15 @@
 from __future__ import annotations
 
-from collections.abc import Mapping
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from mknodes.basenodes import mkcontainer, mknode, mktabs, mktext
 from mknodes.utils import log, reprhelpers
 
 
+if TYPE_CHECKING:
+    from collections.abc import Mapping
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/data/datatypes.py b/mknodes/data/datatypes.py
index cf97bfb6..da7742a1 100644
--- a/mknodes/data/datatypes.py
+++ b/mknodes/data/datatypes.py
@@ -2,10 +2,13 @@
 
 import collections
 from collections.abc import Callable, ItemsView, KeysView, ValuesView
-from dataclasses import Field
 import types
 from types import MappingProxyType, SimpleNamespace
-from typing import Any, ClassVar, Literal, Protocol, runtime_checkable
+from typing import TYPE_CHECKING, Any, ClassVar, Literal, Protocol, runtime_checkable
+
+
+if TYPE_CHECKING:
+    from dataclasses import Field
 
 
 AdmonitionTypeStr = Literal[
diff --git a/mknodes/data/fences.py b/mknodes/data/fences.py
index 16a013cd..5649eb0f 100644
--- a/mknodes/data/fences.py
+++ b/mknodes/data/fences.py
@@ -1,11 +1,15 @@
 from __future__ import annotations
 
-from collections.abc import Callable
 import dataclasses
+from typing import TYPE_CHECKING
 
 from pymdownx import superfences
 
 
+if TYPE_CHECKING:
+    from collections.abc import Callable
+
+
 @dataclasses.dataclass(frozen=True)
 class Fences:
     """Class describing a superfence.
diff --git a/mknodes/extranodes/mkcodeimage/__init__.py b/mknodes/extranodes/mkcodeimage/__init__.py
index 15d1fc0a..26a841f1 100644
--- a/mknodes/extranodes/mkcodeimage/__init__.py
+++ b/mknodes/extranodes/mkcodeimage/__init__.py
@@ -1,17 +1,19 @@
 from __future__ import annotations
 
-import os
 import textwrap
 
-from typing import Any, Self
+from typing import Any, Self, TYPE_CHECKING
 
 from jinjarope import textfilters
 import upath
 
 from mknodes.basenodes import mknode
-from mknodes.data import datatypes
 from mknodes.utils import classhelpers, inspecthelpers, log, richhelpers
 
+if TYPE_CHECKING:
+    from mknodes.data import datatypes
+    import os
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/extranodes/mkprettyprint/__init__.py b/mknodes/extranodes/mkprettyprint/__init__.py
index a643ee75..c86f5f7e 100644
--- a/mknodes/extranodes/mkprettyprint/__init__.py
+++ b/mknodes/extranodes/mkprettyprint/__init__.py
@@ -1,11 +1,13 @@
 from __future__ import annotations
 
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.templatenodes import mktemplate
-from mknodes.data import datatypes
 from mknodes.utils import log
 
+if TYPE_CHECKING:
+    from mknodes.data import datatypes
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/extranodes/mkseedir/__init__.py b/mknodes/extranodes/mkseedir/__init__.py
index d43d5ca6..22b05f68 100644
--- a/mknodes/extranodes/mkseedir/__init__.py
+++ b/mknodes/extranodes/mkseedir/__init__.py
@@ -1,13 +1,15 @@
 from __future__ import annotations
 
-import os
 import upath
 
-from typing import Any, Literal
+from typing import Any, Literal, TYPE_CHECKING
 
 from mknodes.basenodes import mkcode
 from mknodes.utils import helpers, log, resources
 
+if TYPE_CHECKING:
+    import os
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/extranodes/mksnippet/__init__.py b/mknodes/extranodes/mksnippet/__init__.py
index beeb0bf0..7e3cd039 100644
--- a/mknodes/extranodes/mksnippet/__init__.py
+++ b/mknodes/extranodes/mksnippet/__init__.py
@@ -1,11 +1,13 @@
 from __future__ import annotations
 
-import os
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.basenodes import mknode
 from mknodes.utils import log, resources
 
+if TYPE_CHECKING:
+    import os
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/info/cli/commandinfo.py b/mknodes/info/cli/commandinfo.py
index ecac0968..2138b1ad 100644
--- a/mknodes/info/cli/commandinfo.py
+++ b/mknodes/info/cli/commandinfo.py
@@ -1,11 +1,15 @@
 from __future__ import annotations
 
 import dataclasses
+from typing import TYPE_CHECKING
 
-from mknodes.info.cli import param
 from mknodes.utils import reprhelpers
 
 
+if TYPE_CHECKING:
+    from mknodes.info.cli import param
+
+
 @dataclasses.dataclass(frozen=True)
 class CommandInfo:
     name: str
diff --git a/mknodes/info/cli/param.py b/mknodes/info/cli/param.py
index 526ddb1a..0f75527d 100644
--- a/mknodes/info/cli/param.py
+++ b/mknodes/info/cli/param.py
@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-from collections.abc import Callable
 import dataclasses
 from typing import TYPE_CHECKING, Any, Literal
 
@@ -8,6 +7,8 @@
 
 
 if TYPE_CHECKING:
+    from collections.abc import Callable
+
     from click import types as clicktypes
 
 
diff --git a/mknodes/info/configfile.py b/mknodes/info/configfile.py
index 4c8c11e9..e66285c4 100644
--- a/mknodes/info/configfile.py
+++ b/mknodes/info/configfile.py
@@ -1,13 +1,16 @@
 from __future__ import annotations
 
-import os
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 import upath
 
 from mknodes.utils import superdict
 
 
+if TYPE_CHECKING:
+    import os
+
+
 class ConfigFile(superdict.SuperDict):
     def __init__(self, path: str | os.PathLike | None = None):
         """Constructor.
diff --git a/mknodes/info/contexts.py b/mknodes/info/contexts.py
index 2c9b8cfa..7e07434b 100644
--- a/mknodes/info/contexts.py
+++ b/mknodes/info/contexts.py
@@ -3,12 +3,9 @@
 import abc
 from collections.abc import Mapping, MutableMapping
 import dataclasses
-import datetime
 import pathlib
-import types
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
-from griffe.dataclasses import Alias, Module
 import jinjarope
 
 import mknodes as mk
@@ -21,10 +18,18 @@
     packageregistry,
     pyproject,
 )
-from mknodes.info.cli import commandinfo
 from mknodes.utils import log, superdict
 
 
+if TYPE_CHECKING:
+    import datetime
+    import types
+
+    from griffe.dataclasses import Alias, Module
+
+    from mknodes.info.cli import commandinfo
+
+
 logger = log.get_logger(__name__)
 
 DEFAULT_LOADER = jinjarope.FileSystemLoader("docs")
diff --git a/mknodes/info/folderinfo.py b/mknodes/info/folderinfo.py
index 8bd7bb9b..51feca4a 100644
--- a/mknodes/info/folderinfo.py
+++ b/mknodes/info/folderinfo.py
@@ -4,10 +4,8 @@
 import dataclasses
 import functools
 import importlib
-import os
 import pathlib
 import re
-import types
 from typing import TYPE_CHECKING
 
 from mknodes.data import commitconventions, installmethods, taskrunners, tools
@@ -32,6 +30,9 @@
 
 
 if TYPE_CHECKING:
+    import os
+    import types
+
     import griffe
     from griffe.dataclasses import Alias
 
diff --git a/mknodes/info/githubinfo.py b/mknodes/info/githubinfo.py
index 8151c974..2997e10a 100644
--- a/mknodes/info/githubinfo.py
+++ b/mknodes/info/githubinfo.py
@@ -1,9 +1,9 @@
 from __future__ import annotations
 
 import dataclasses
-import datetime
 import functools
 import os
+from typing import TYPE_CHECKING
 
 import github
 from github import Commit
@@ -12,6 +12,10 @@
 from mknodes.utils import downloadhelpers, log, pathhelpers, reprhelpers
 
 
+if TYPE_CHECKING:
+    import datetime
+
+
 TOKEN = os.environ.get("GITHUB_TOKEN")
 auth = github.Auth.Token(TOKEN) if TOKEN else None
 logger = log.get_logger(__name__)
diff --git a/mknodes/info/gitrepository.py b/mknodes/info/gitrepository.py
index 6a872c70..f3b6bc96 100644
--- a/mknodes/info/gitrepository.py
+++ b/mknodes/info/gitrepository.py
@@ -1,9 +1,7 @@
 from __future__ import annotations
 
 import functools
-import os
-import tempfile
-from typing import Any, Self
+from typing import TYPE_CHECKING, Any, Self
 from urllib import parse
 
 import git
@@ -13,6 +11,11 @@
 from mknodes.utils import log, reprhelpers
 
 
+if TYPE_CHECKING:
+    import os
+    import tempfile
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/info/grifferegistry.py b/mknodes/info/grifferegistry.py
index d7474c76..2cbb4672 100644
--- a/mknodes/info/grifferegistry.py
+++ b/mknodes/info/grifferegistry.py
@@ -3,15 +3,19 @@
 from abc import ABCMeta
 from collections.abc import MutableMapping
 import types
+from typing import TYPE_CHECKING
 
-import griffe
-from griffe.dataclasses import Alias
 from griffe.enumerations import Parser
 from griffe.loader import GriffeLoader
 
 from mknodes.utils import log
 
 
+if TYPE_CHECKING:
+    import griffe
+    from griffe.dataclasses import Alias
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/info/linkprovider.py b/mknodes/info/linkprovider.py
index 1f123181..03d60669 100644
--- a/mknodes/info/linkprovider.py
+++ b/mknodes/info/linkprovider.py
@@ -1,8 +1,6 @@
 from __future__ import annotations
 
-from collections.abc import Sequence
 from importlib import metadata
-import os
 import sys
 import types
 from typing import TYPE_CHECKING
@@ -19,6 +17,9 @@
 
 
 if TYPE_CHECKING:
+    from collections.abc import Sequence
+    import os
+
     import mknodes as mk
 
     LinkableType = str | mk.MkPage | mk.MkNav | mk.MkHeader | types.ModuleType | type
diff --git a/mknodes/info/nodefile.py b/mknodes/info/nodefile.py
index 12634cd3..c6bca6fe 100644
--- a/mknodes/info/nodefile.py
+++ b/mknodes/info/nodefile.py
@@ -1,9 +1,6 @@
 from __future__ import annotations
 
-from collections.abc import Generator
 import functools
-import os
-import pathlib
 from typing import TYPE_CHECKING
 
 from jinjarope import inspectfilters, textfilters
@@ -13,6 +10,10 @@
 
 
 if TYPE_CHECKING:
+    from collections.abc import Generator
+    import os
+    import pathlib
+
     import mknodes as mk
 
 
diff --git a/mknodes/info/pyproject.py b/mknodes/info/pyproject.py
index 5b4ae5f3..6616ca69 100644
--- a/mknodes/info/pyproject.py
+++ b/mknodes/info/pyproject.py
@@ -2,8 +2,7 @@
 
 import collections
 import functools
-import os
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 import upath
 
@@ -12,6 +11,10 @@
 from mknodes.utils import pathhelpers, superdict
 
 
+if TYPE_CHECKING:
+    import os
+
+
 class PyProject(tomlfile.TomlFile):
     """Class representing a PyProject config file."""
 
diff --git a/mknodes/info/yamlfile.py b/mknodes/info/yamlfile.py
index 6c84f4c1..ab0b3be9 100644
--- a/mknodes/info/yamlfile.py
+++ b/mknodes/info/yamlfile.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-import os
+from typing import TYPE_CHECKING
 
 from jinjarope import serializefilters
 import upath
@@ -9,6 +9,10 @@
 from mknodes.utils import log, yamlhelpers
 
 
+if TYPE_CHECKING:
+    import os
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/jinja/filters.py b/mknodes/jinja/filters.py
index 67ec0a9d..9e5b1b8d 100644
--- a/mknodes/jinja/filters.py
+++ b/mknodes/jinja/filters.py
@@ -6,7 +6,6 @@
 from jinja2 import runtime
 from markupsafe import Markup
 
-from mknodes.jinja import nodeenvironment
 from mknodes.utils import pathhelpers
 
 
@@ -16,6 +15,7 @@
     import griffe
 
     import mknodes as mk
+    from mknodes.jinja import nodeenvironment
 
 
 @jinja2.pass_environment
diff --git a/mknodes/mdlib/markdownhelpers.py b/mknodes/mdlib/markdownhelpers.py
index 6b9e3afc..cf47c822 100644
--- a/mknodes/mdlib/markdownhelpers.py
+++ b/mknodes/mdlib/markdownhelpers.py
@@ -1,10 +1,14 @@
 from __future__ import annotations
 
-import markdown
+from typing import TYPE_CHECKING
 
 from mknodes.utils import log
 
 
+if TYPE_CHECKING:
+    import markdown
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/mdlib/mdconverter.py b/mknodes/mdlib/mdconverter.py
index b44103be..99d81c41 100644
--- a/mknodes/mdlib/mdconverter.py
+++ b/mknodes/mdlib/mdconverter.py
@@ -1,13 +1,16 @@
 from __future__ import annotations
 
-from collections.abc import Sequence
-from typing import Any, Literal
+from typing import TYPE_CHECKING, Any, Literal
 
 import markdown
 
 from mknodes.utils import log
 
 
+if TYPE_CHECKING:
+    from collections.abc import Sequence
+
+
 logger = log.get_logger(__name__)
 
 DEFAULT_EXTS: Sequence[str | markdown.Extension] = [
diff --git a/mknodes/navs/mkdoc.py b/mknodes/navs/mkdoc.py
index 358941a2..21d1041e 100644
--- a/mknodes/navs/mkdoc.py
+++ b/mknodes/navs/mkdoc.py
@@ -1,14 +1,17 @@
 from __future__ import annotations
 
-from collections.abc import Sequence
-import types
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from mknodes.navs import mknav
 from mknodes.pages import mkclasspage, mkmodulepage
 from mknodes.utils import classhelpers, log, reprhelpers
 
 
+if TYPE_CHECKING:
+    from collections.abc import Sequence
+    import types
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/navs/mknav.py b/mknodes/navs/mknav.py
index 691dad2b..2aae8b07 100644
--- a/mknodes/navs/mknav.py
+++ b/mknodes/navs/mknav.py
@@ -1,20 +1,21 @@
 from __future__ import annotations
 
-from collections.abc import Sequence
 import inspect
 import pathlib
-import types
 from typing import TYPE_CHECKING, Any
 
 from mknodes.basenodes import mknode
-from mknodes.data.datatypes import PageStatusStr
 from mknodes.navs import navigation, navparser, navrouter
 from mknodes.pages import metadata as metadata_, mkpage, pagetemplate
 from mknodes.utils import inspecthelpers, log, reprhelpers
 
 
 if TYPE_CHECKING:
+    from collections.abc import Sequence
+    import types
+
     import mknodes as mk
+    from mknodes.data.datatypes import PageStatusStr
 
 
 logger = log.get_logger(__name__)
diff --git a/mknodes/navs/navbuilder.py b/mknodes/navs/navbuilder.py
index e2178cc8..01f87fca 100644
--- a/mknodes/navs/navbuilder.py
+++ b/mknodes/navs/navbuilder.py
@@ -1,8 +1,12 @@
 from __future__ import annotations
 
-from collections.abc import Iterable, Mapping
 import dataclasses
 import os
+from typing import TYPE_CHECKING
+
+
+if TYPE_CHECKING:
+    from collections.abc import Iterable, Mapping
 
 
 MD_ESCAPE_CHARS = tuple("!#()*+-[\\]_`{}")
diff --git a/mknodes/navs/navrouter.py b/mknodes/navs/navrouter.py
index 490738fd..86c8782b 100644
--- a/mknodes/navs/navrouter.py
+++ b/mknodes/navs/navrouter.py
@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-from collections.abc import Callable
 from typing import TYPE_CHECKING, Any
 
 from mknodes.basenodes import mklink
@@ -10,6 +9,8 @@
 
 
 if TYPE_CHECKING:
+    from collections.abc import Callable
+
     NavSubType = mknav.MkNav | mkpage.MkPage | mklink.MkLink
 
 logger = log.get_logger(__name__)
diff --git a/mknodes/navs/router.py b/mknodes/navs/router.py
index b2c0fc51..03ff1d3b 100644
--- a/mknodes/navs/router.py
+++ b/mknodes/navs/router.py
@@ -1,15 +1,17 @@
 from __future__ import annotations
 
-from collections.abc import Callable
 from typing import TYPE_CHECKING, Any
 
-from mknodes.basenodes import mklink
 from mknodes.navs import mknav
 from mknodes.pages import mkpage
 from mknodes.utils import log
 
 
 if TYPE_CHECKING:
+    from collections.abc import Callable
+
+    from mknodes.basenodes import mklink
+
     NavSubType = mknav.MkNav | mkpage.MkPage | mklink.MkLink
 
 logger = log.get_logger(__name__)
diff --git a/mknodes/pages/metadata.py b/mknodes/pages/metadata.py
index e43b9000..0f1e213e 100644
--- a/mknodes/pages/metadata.py
+++ b/mknodes/pages/metadata.py
@@ -1,12 +1,15 @@
 from __future__ import annotations
 
 import re
-from typing import Literal, Self
+from typing import TYPE_CHECKING, Literal, Self
 
-from mknodes.data import datatypes
 from mknodes.utils import yamlhelpers
 
 
+if TYPE_CHECKING:
+    from mknodes.data import datatypes
+
+
 HEADER = "---\n{options}---\n"
 
 HEADER_RE = re.compile(r"\A-{3}\n([\S\s]*)^-{3}(\n|$)", re.MULTILINE)
diff --git a/mknodes/pages/mkmodulepage/__init__.py b/mknodes/pages/mkmodulepage/__init__.py
index 08da9c1f..38be2c5d 100644
--- a/mknodes/pages/mkmodulepage/__init__.py
+++ b/mknodes/pages/mkmodulepage/__init__.py
@@ -1,14 +1,16 @@
 from __future__ import annotations
 
-import types
 
 import pathlib
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.info import grifferegistry
 from mknodes.pages import mktemplatepage
 from mknodes.utils import classhelpers, inspecthelpers, log, reprhelpers
 
+if TYPE_CHECKING:
+    import types
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/pages/mkpage.py b/mknodes/pages/mkpage.py
index ea826afd..3393bb25 100644
--- a/mknodes/pages/mkpage.py
+++ b/mknodes/pages/mkpage.py
@@ -1,20 +1,24 @@
 from __future__ import annotations
 
-from collections.abc import Callable
 import inspect
-import os
 import pathlib
-from typing import Any, Self
+from typing import TYPE_CHECKING, Any, Self
 from urllib import parse
 
 from jinjarope import textfilters
 
 from mknodes.basenodes import mkcontainer, mkfootnotes, mknode, processors
-from mknodes.data import datatypes
 from mknodes.pages import metadata, pagetemplate
 from mknodes.utils import inspecthelpers, log, pathhelpers, reprhelpers
 
 
+if TYPE_CHECKING:
+    from collections.abc import Callable
+    import os
+
+    from mknodes.data import datatypes
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/templatenodes/mkcallable/__init__.py b/mknodes/templatenodes/mkcallable/__init__.py
index 8bf59f5b..e391d2e6 100644
--- a/mknodes/templatenodes/mkcallable/__init__.py
+++ b/mknodes/templatenodes/mkcallable/__init__.py
@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-from collections.abc import Callable
 from typing import TYPE_CHECKING, Any
 
 from mknodes.basenodes import mknode
@@ -8,6 +7,7 @@
 
 
 if TYPE_CHECKING:
+    from collections.abc import Callable
     import mknodes as mk
 
 
diff --git a/mknodes/templatenodes/mkchangelog/__init__.py b/mknodes/templatenodes/mkchangelog/__init__.py
index 8ec7d8fc..a5489736 100644
--- a/mknodes/templatenodes/mkchangelog/__init__.py
+++ b/mknodes/templatenodes/mkchangelog/__init__.py
@@ -3,15 +3,17 @@
 import contextlib
 import functools
 import io
-import os
 
-from typing import Any, Literal
+from typing import Any, Literal, TYPE_CHECKING
 
 from git_changelog import cli
 
 from mknodes.basenodes import mktext
 from mknodes.utils import helpers, log, resources
 
+if TYPE_CHECKING:
+    import os
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/templatenodes/mkclassdiagram/__init__.py b/mknodes/templatenodes/mkclassdiagram/__init__.py
index 3f1b00fe..82797ec5 100644
--- a/mknodes/templatenodes/mkclassdiagram/__init__.py
+++ b/mknodes/templatenodes/mkclassdiagram/__init__.py
@@ -2,14 +2,16 @@
 
 import itertools
 
-from typing import Any, Literal
+from typing import Any, Literal, TYPE_CHECKING
 
 from jinjarope import inspectfilters
-import griffe
 
 from mknodes.basenodes import mkdiagram
 from mknodes.utils import classhelpers, connector, helpers, reprhelpers
 
+if TYPE_CHECKING:
+    import griffe
+
 
 DiagramModeStr = Literal["baseclasses", "subclasses", "mro"]
 
diff --git a/mknodes/templatenodes/mkclasstable/__init__.py b/mknodes/templatenodes/mkclasstable/__init__.py
index 43432f7d..b97782d0 100644
--- a/mknodes/templatenodes/mkclasstable/__init__.py
+++ b/mknodes/templatenodes/mkclasstable/__init__.py
@@ -1,11 +1,14 @@
 from __future__ import annotations
-from collections.abc import Sequence
 
 import griffe
 
 from mknodes.info import grifferegistry
 from mknodes.templatenodes import mktemplatetable
 from mknodes.utils import classhelpers, log
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from collections.abc import Sequence
 
 
 logger = log.get_logger(__name__)
diff --git a/mknodes/templatenodes/mkcommandoutput/__init__.py b/mknodes/templatenodes/mkcommandoutput/__init__.py
index b97819f6..9fc454c2 100644
--- a/mknodes/templatenodes/mkcommandoutput/__init__.py
+++ b/mknodes/templatenodes/mkcommandoutput/__init__.py
@@ -1,12 +1,14 @@
 from __future__ import annotations
 
-from collections.abc import Sequence
 
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.templatenodes import mktemplate
 from mknodes.utils import log, resources
 
+if TYPE_CHECKING:
+    from collections.abc import Sequence
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/templatenodes/mkcommentedcode/__init__.py b/mknodes/templatenodes/mkcommentedcode/__init__.py
index 2e3e8136..7535c299 100644
--- a/mknodes/templatenodes/mkcommentedcode/__init__.py
+++ b/mknodes/templatenodes/mkcommentedcode/__init__.py
@@ -1,11 +1,13 @@
 from __future__ import annotations
 
-from typing import Any, Literal
+from typing import Any, Literal, TYPE_CHECKING
 
 from mknodes.templatenodes import mktemplate
-from mknodes.data import datatypes
 from mknodes.utils import inspecthelpers, log
 
+if TYPE_CHECKING:
+    from mknodes.data import datatypes
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/templatenodes/mkconfigsetting/__init__.py b/mknodes/templatenodes/mkconfigsetting/__init__.py
index 6ed69f06..afe10b86 100644
--- a/mknodes/templatenodes/mkconfigsetting/__init__.py
+++ b/mknodes/templatenodes/mkconfigsetting/__init__.py
@@ -1,9 +1,11 @@
 from __future__ import annotations
 
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.templatenodes import mktemplate
-from mknodes.utils import superdict
+
+if TYPE_CHECKING:
+    from mknodes.utils import superdict
 
 
 class MkConfigSetting(mktemplate.MkTemplate):
diff --git a/mknodes/templatenodes/mkdependencytable/__init__.py b/mknodes/templatenodes/mkdependencytable/__init__.py
index a48ac6ad..75af2b62 100644
--- a/mknodes/templatenodes/mkdependencytable/__init__.py
+++ b/mknodes/templatenodes/mkdependencytable/__init__.py
@@ -1,11 +1,13 @@
 from __future__ import annotations
 
-from typing import Literal
+from typing import Literal, TYPE_CHECKING
 
 from mknodes.templatenodes import mktemplatetable
 from mknodes.info import packageinfo, packageregistry
 from mknodes.utils import log
-from mknodes.utils.packagehelpers import Dependency
+
+if TYPE_CHECKING:
+    from mknodes.utils.packagehelpers import Dependency
 
 
 logger = log.get_logger(__name__)
diff --git a/mknodes/templatenodes/mkdevtools/__init__.py b/mknodes/templatenodes/mkdevtools/__init__.py
index 692c35c3..6b3884b2 100644
--- a/mknodes/templatenodes/mkdevtools/__init__.py
+++ b/mknodes/templatenodes/mkdevtools/__init__.py
@@ -1,11 +1,13 @@
 from __future__ import annotations
 
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.templatenodes import mktemplate
-from mknodes.data import tools
 from mknodes.utils import log
 
+if TYPE_CHECKING:
+    from mknodes.data import tools
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/templatenodes/mkmoduletable/__init__.py b/mknodes/templatenodes/mkmoduletable/__init__.py
index b3552eb4..464a530f 100644
--- a/mknodes/templatenodes/mkmoduletable/__init__.py
+++ b/mknodes/templatenodes/mkmoduletable/__init__.py
@@ -1,11 +1,14 @@
 from __future__ import annotations
 
-from collections.abc import Sequence
-import types
 
 from mknodes.info import grifferegistry
 from mknodes.templatenodes import mktemplatetable
 from mknodes.utils import classhelpers, helpers, log
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    import types
+    from collections.abc import Sequence
 
 
 logger = log.get_logger(__name__)
diff --git a/mknodes/templatenodes/mkpydeps/__init__.py b/mknodes/templatenodes/mkpydeps/__init__.py
index 87e5c28c..40c5c415 100644
--- a/mknodes/templatenodes/mkpydeps/__init__.py
+++ b/mknodes/templatenodes/mkpydeps/__init__.py
@@ -1,15 +1,17 @@
 from __future__ import annotations
 
-from collections.abc import Mapping
 import functools
 import os
 import types
 
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.basenodes import mknode
 from mknodes.utils import inspecthelpers, log, resources
 
+if TYPE_CHECKING:
+    from collections.abc import Mapping
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/templatenodes/mkreprrawrendered/__init__.py b/mknodes/templatenodes/mkreprrawrendered/__init__.py
index 3196dbc4..abcdef30 100644
--- a/mknodes/templatenodes/mkreprrawrendered/__init__.py
+++ b/mknodes/templatenodes/mkreprrawrendered/__init__.py
@@ -1,9 +1,11 @@
 from __future__ import annotations
 
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.templatenodes import mktemplate
-from mknodes.basenodes import mknode
+
+if TYPE_CHECKING:
+    from mknodes.basenodes import mknode
 
 
 class MkReprRawRendered(mktemplate.MkTemplate):
diff --git a/mknodes/templatenodes/mkshields/__init__.py b/mknodes/templatenodes/mkshields/__init__.py
index fcf76b25..c1854aa4 100644
--- a/mknodes/templatenodes/mkshields/__init__.py
+++ b/mknodes/templatenodes/mkshields/__init__.py
@@ -1,12 +1,14 @@
 from __future__ import annotations
 
-from collections.abc import Sequence
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes.basenodes import mkcontainer, mkimage, mknode
 from mknodes.data import badges
 from mknodes.utils import log
 
+if TYPE_CHECKING:
+    from collections.abc import Sequence
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/templatenodes/mktreeview/__init__.py b/mknodes/templatenodes/mktreeview/__init__.py
index 9b6cfb54..600e8fb1 100644
--- a/mknodes/templatenodes/mktreeview/__init__.py
+++ b/mknodes/templatenodes/mktreeview/__init__.py
@@ -1,16 +1,18 @@
 from __future__ import annotations
 
-from collections.abc import Callable
 import os
 import upath
 
-from typing import Any
+from typing import Any, TYPE_CHECKING
 
 from mknodes import treelib
 from mknodes.basenodes import mkcode, mknode
-from mknodes.data import treestyles
 from mknodes.utils import log
 
+if TYPE_CHECKING:
+    from mknodes.data import treestyles
+    from collections.abc import Callable
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/theme/materialtheme/__init__.py b/mknodes/theme/materialtheme/__init__.py
index 3b8dff0c..29bfe6a6 100644
--- a/mknodes/theme/materialtheme/__init__.py
+++ b/mknodes/theme/materialtheme/__init__.py
@@ -1,16 +1,18 @@
 from __future__ import annotations
 
-from collections.abc import MutableMapping
 import dataclasses
 import functools
 
-from typing import Any, Literal
+from typing import Any, Literal, TYPE_CHECKING
 
-from mknodes.data import datatypes
 from mknodes.theme import colortheme, theme
 from mknodes.theme.materialtheme import palette
 from mknodes.utils import color as col, icons, log, reprhelpers
 
+if TYPE_CHECKING:
+    from mknodes.data import datatypes
+    from collections.abc import MutableMapping
+
 
 logger = log.get_logger(__name__)
 
diff --git a/mknodes/theme/mkgitblog.py b/mknodes/theme/mkgitblog.py
index c82d8ab8..dcc3ede5 100644
--- a/mknodes/theme/mkgitblog.py
+++ b/mknodes/theme/mkgitblog.py
@@ -1,9 +1,8 @@
 from __future__ import annotations
 
 import dataclasses
-import datetime
 import json
-import os
+from typing import TYPE_CHECKING
 
 import dateutil.parser
 
@@ -11,6 +10,11 @@
 from mknodes.utils import downloadhelpers
 
 
+if TYPE_CHECKING:
+    import datetime
+    import os
+
+
 @dataclasses.dataclass(frozen=True)
 class Commit:
     """Class representing a single Git commit."""
diff --git a/mknodes/theme/theme.py b/mknodes/theme/theme.py
index 95e6e7f9..14f757ed 100644
--- a/mknodes/theme/theme.py
+++ b/mknodes/theme/theme.py
@@ -1,7 +1,6 @@
 from __future__ import annotations
 
-from collections.abc import MutableMapping
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 import jinjarope
 
@@ -11,6 +10,10 @@
 from mknodes.utils import color, icons, log, reprhelpers, resources
 
 
+if TYPE_CHECKING:
+    from collections.abc import MutableMapping
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/treelib/filetreenode.py b/mknodes/treelib/filetreenode.py
index d0d8831a..4e9521a5 100644
--- a/mknodes/treelib/filetreenode.py
+++ b/mknodes/treelib/filetreenode.py
@@ -1,14 +1,18 @@
 from __future__ import annotations
 
-from collections.abc import Callable
-import pathlib
-from typing import Any, Self, cast
+from typing import TYPE_CHECKING, Any, Self, cast
 
-from mknodes.data import treestyles
 from mknodes.treelib import node
 from mknodes.utils import log
 
 
+if TYPE_CHECKING:
+    from collections.abc import Callable
+    import pathlib
+
+    from mknodes.data import treestyles
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/treelib/node.py b/mknodes/treelib/node.py
index fe0663ba..417fa142 100644
--- a/mknodes/treelib/node.py
+++ b/mknodes/treelib/node.py
@@ -1,14 +1,17 @@
 from __future__ import annotations
 
-from collections.abc import Callable, Iterable, Iterator, Sequence
 import copy
-import types
-from typing import Self
+from typing import TYPE_CHECKING, Self
 
 from mknodes.data import treestyles
 from mknodes.utils import log, reprhelpers
 
 
+if TYPE_CHECKING:
+    from collections.abc import Callable, Iterable, Iterator, Sequence
+    import types
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/utils/classhelpers.py b/mknodes/utils/classhelpers.py
index c868499e..b725d456 100644
--- a/mknodes/utils/classhelpers.py
+++ b/mknodes/utils/classhelpers.py
@@ -6,7 +6,6 @@
 import importlib
 import importlib.util
 import inspect
-import os
 import pathlib
 import sys
 import types
@@ -17,6 +16,10 @@
 from mknodes.utils import log
 
 
+if typing.TYPE_CHECKING:
+    import os
+
+
 T = typing.TypeVar("T", bound=type)
 
 
diff --git a/mknodes/utils/classproperty.py b/mknodes/utils/classproperty.py
index 561ab5c3..9fe669f7 100644
--- a/mknodes/utils/classproperty.py
+++ b/mknodes/utils/classproperty.py
@@ -1,6 +1,10 @@
 from __future__ import annotations
 
-from collections.abc import Callable
+from typing import TYPE_CHECKING
+
+
+if TYPE_CHECKING:
+    from collections.abc import Callable
 
 
 class ClassPropertyDescriptor:
diff --git a/mknodes/utils/color.py b/mknodes/utils/color.py
index d36201b8..7e8973db 100644
--- a/mknodes/utils/color.py
+++ b/mknodes/utils/color.py
@@ -1,11 +1,14 @@
 from __future__ import annotations
 
-from collections.abc import Sequence
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 import coloraide
 
 
+if TYPE_CHECKING:
+    from collections.abc import Sequence
+
+
 RGB_TUPLE_LEN = 3
 ALPHA_DEFAULT = 1.0
 
diff --git a/mknodes/utils/connector.py b/mknodes/utils/connector.py
index 4c906602..15d88431 100644
--- a/mknodes/utils/connector.py
+++ b/mknodes/utils/connector.py
@@ -1,11 +1,15 @@
 from __future__ import annotations
 
-from collections.abc import Hashable
 import textwrap
+from typing import TYPE_CHECKING
 
 from mknodes.utils import log
 
 
+if TYPE_CHECKING:
+    from collections.abc import Hashable
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/utils/helpers.py b/mknodes/utils/helpers.py
index 0d6ba09f..c74bb761 100644
--- a/mknodes/utils/helpers.py
+++ b/mknodes/utils/helpers.py
@@ -1,12 +1,15 @@
 from __future__ import annotations
 
-from collections.abc import Callable, Iterable
 import itertools
-from typing import ParamSpec, TypeVar
+from typing import TYPE_CHECKING, ParamSpec, TypeVar
 
 from mknodes.utils import log
 
 
+if TYPE_CHECKING:
+    from collections.abc import Callable, Iterable
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/utils/icons.py b/mknodes/utils/icons.py
index 9d0cdc78..efe15480 100644
--- a/mknodes/utils/icons.py
+++ b/mknodes/utils/icons.py
@@ -1,15 +1,18 @@
 from __future__ import annotations
 
-from collections.abc import Sequence
 import functools
-from typing import Any, Literal
+from typing import TYPE_CHECKING, Any, Literal
 import xml.etree.ElementTree as etree
 
-import markdown
-
 from mknodes import paths
 
 
+if TYPE_CHECKING:
+    from collections.abc import Sequence
+
+    import markdown
+
+
 PYCONIFY_TO_PREFIXES = {
     "mdi": "material",
     "simple-icons": "simple",
diff --git a/mknodes/utils/inspecthelpers.py b/mknodes/utils/inspecthelpers.py
index c9e43b1b..a456d975 100644
--- a/mknodes/utils/inspecthelpers.py
+++ b/mknodes/utils/inspecthelpers.py
@@ -3,13 +3,17 @@
 import dataclasses
 import functools
 import inspect
-import pathlib
-import types
+from typing import TYPE_CHECKING
 
 import griffe
 from jinjarope import inspectfilters
 
-from mknodes.data import datatypes
+
+if TYPE_CHECKING:
+    import pathlib
+    import types
+
+    from mknodes.data import datatypes
 
 
 def iter_code_sections(code_string: str, start_line: int | None = None):
diff --git a/mknodes/utils/inventorymanager.py b/mknodes/utils/inventorymanager.py
index 486c55e8..e98933a2 100644
--- a/mknodes/utils/inventorymanager.py
+++ b/mknodes/utils/inventorymanager.py
@@ -8,13 +8,16 @@
 import pathlib
 import posixpath
 import re
-import types
-from typing import BinaryIO, Self
+from typing import TYPE_CHECKING, BinaryIO, Self
 import zlib
 
 from mknodes.utils import downloadhelpers, helpers, log
 
 
+if TYPE_CHECKING:
+    import types
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/utils/packagehelpers.py b/mknodes/utils/packagehelpers.py
index 55256895..73f3fbf5 100644
--- a/mknodes/utils/packagehelpers.py
+++ b/mknodes/utils/packagehelpers.py
@@ -1,13 +1,11 @@
 from __future__ import annotations
 
 import collections
-from collections.abc import Mapping
 import dataclasses
 import functools
 import importlib
 from importlib import metadata
-import types
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from packaging.markers import Marker
 from packaging.requirements import Requirement
@@ -16,6 +14,11 @@
 from mknodes.utils import log
 
 
+if TYPE_CHECKING:
+    from collections.abc import Mapping
+    import types
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/utils/pathhelpers.py b/mknodes/utils/pathhelpers.py
index 80507069..0e06993d 100644
--- a/mknodes/utils/pathhelpers.py
+++ b/mknodes/utils/pathhelpers.py
@@ -1,11 +1,11 @@
 from __future__ import annotations
 
-from collections.abc import Mapping
 import functools
 import os
 import pathlib
 import posixpath
 import shutil
+from typing import TYPE_CHECKING
 
 import upath
 from upath import core, registry
@@ -13,6 +13,10 @@
 from mknodes.utils import log
 
 
+if TYPE_CHECKING:
+    from collections.abc import Mapping
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/utils/reprhelpers.py b/mknodes/utils/reprhelpers.py
index 75fd795b..1be4d4ea 100644
--- a/mknodes/utils/reprhelpers.py
+++ b/mknodes/utils/reprhelpers.py
@@ -2,14 +2,17 @@
 
 import os
 import reprlib
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 from jinjarope import inspectfilters, textfilters, utils
 
-from mknodes.data import datatypes
 from mknodes.utils import log
 
 
+if TYPE_CHECKING:
+    from mknodes.data import datatypes
+
+
 logger = log.get_logger(__name__)
 
 
diff --git a/mknodes/utils/superdict.py b/mknodes/utils/superdict.py
index 7de55f86..83b6c06f 100644
--- a/mknodes/utils/superdict.py
+++ b/mknodes/utils/superdict.py
@@ -2,14 +2,17 @@
 
 from abc import ABCMeta
 from collections.abc import Iterator, MutableMapping
-import os
-from typing import Any, Literal, Self, TypeVar
+from typing import TYPE_CHECKING, Any, Literal, Self, TypeVar
 
 from jinjarope import serializefilters
 
 from mknodes.utils import pathhelpers, reprhelpers
 
 
+if TYPE_CHECKING:
+    import os
+
+
 MarkupTypeStr = Literal["yaml", "json", "toml"]
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 69df86f4..9094273a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -218,7 +218,7 @@ select = [
     # "TD",   # flake8-todos
     "T10",  # flake8-debugger
     # "T20",  # flake8-print
-    # "TCH",  # flake8-type-checking
+    "TCH",  # flake8-type-checking
     "TID",  # flake8-tidy-imports
     "TRY",  # tryceratops
     "UP",   # PyUpgrade