diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index a7fb01e..1294c63 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -22,12 +22,10 @@ jobs:
       fail-fast: false
       matrix:
         python-version:
-        - '3.8'
         - '3.9'
         - '3.10'
         - '3.11'
         - '3.12'
-        - 'pypy-3.10'
 
     services:
       redis:
diff --git a/Makefile b/Makefile
index 067dad6..853c5d4 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ clean:
 
 .PHONY: install
 install:
-	poetry install --all-extras --with=dev --with=docs
+	poetry install --sync --all-extras --with=dev --with=docs
 
 .PHONY: lint
 lint: lint/ruff lint/mypy
diff --git a/cachetory/backends/async_/django.py b/cachetory/backends/async_/django.py
index 868488b..08fff64 100644
--- a/cachetory/backends/async_/django.py
+++ b/cachetory/backends/async_/django.py
@@ -1,7 +1,8 @@
 from __future__ import annotations
 
+from collections.abc import AsyncIterable, Iterable
 from datetime import datetime, timedelta
-from typing import AsyncIterable, Generic, Iterable
+from typing import Generic
 from urllib.parse import urlparse
 
 from django.core.cache import BaseCache, cache, caches  # type: ignore[import-untyped]
diff --git a/cachetory/backends/async_/dummy.py b/cachetory/backends/async_/dummy.py
index 87b17cd..6fcd6d5 100644
--- a/cachetory/backends/async_/dummy.py
+++ b/cachetory/backends/async_/dummy.py
@@ -1,7 +1,8 @@
 from __future__ import annotations
 
+from collections.abc import AsyncIterable, Iterable
 from datetime import datetime, timedelta
-from typing import AsyncIterable, Generic, Iterable
+from typing import Generic
 
 from cachetory.interfaces.backends.async_ import AsyncBackend
 from cachetory.interfaces.backends.private import WireT
diff --git a/cachetory/backends/async_/memory.py b/cachetory/backends/async_/memory.py
index f5272d0..4d96463 100644
--- a/cachetory/backends/async_/memory.py
+++ b/cachetory/backends/async_/memory.py
@@ -1,7 +1,8 @@
 from __future__ import annotations
 
+from collections.abc import Coroutine
 from datetime import datetime, timedelta
-from typing import Any, Coroutine, Generic
+from typing import Any, Generic
 
 from cachetory.backends.sync.memory import MemoryBackend as SyncMemoryBackend
 from cachetory.interfaces.backends.async_ import AsyncBackend
diff --git a/cachetory/backends/async_/redis.py b/cachetory/backends/async_/redis.py
index 512508a..78d251d 100644
--- a/cachetory/backends/async_/redis.py
+++ b/cachetory/backends/async_/redis.py
@@ -1,9 +1,9 @@
 from __future__ import annotations
 
 import itertools
+from collections.abc import AsyncIterable, Iterable
 from datetime import datetime, timedelta
 from types import TracebackType
-from typing import AsyncIterable, Iterable
 
 from redis.asyncio import Redis
 
diff --git a/cachetory/backends/sync/django.py b/cachetory/backends/sync/django.py
index d5f674a..3029d1e 100644
--- a/cachetory/backends/sync/django.py
+++ b/cachetory/backends/sync/django.py
@@ -1,7 +1,8 @@
 from __future__ import annotations
 
+from collections.abc import Iterable
 from datetime import datetime, timedelta
-from typing import Generic, Iterable
+from typing import Generic
 from urllib.parse import urlparse
 
 from django.core.cache import BaseCache, cache, caches  # type: ignore[import-untyped]
diff --git a/cachetory/backends/sync/dummy.py b/cachetory/backends/sync/dummy.py
index 2302781..ad9a040 100644
--- a/cachetory/backends/sync/dummy.py
+++ b/cachetory/backends/sync/dummy.py
@@ -1,7 +1,8 @@
 from __future__ import annotations
 
+from collections.abc import Iterable
 from datetime import datetime, timedelta
-from typing import Generic, Iterable
+from typing import Generic
 
 from cachetory.interfaces.backends.private import WireT
 from cachetory.interfaces.backends.sync import SyncBackend
diff --git a/cachetory/backends/sync/redis.py b/cachetory/backends/sync/redis.py
index f11f849..d7d4e30 100644
--- a/cachetory/backends/sync/redis.py
+++ b/cachetory/backends/sync/redis.py
@@ -1,9 +1,9 @@
 from __future__ import annotations
 
 import itertools
+from collections.abc import Iterable
 from datetime import datetime, timedelta
 from types import TracebackType
-from typing import Iterable
 
 from redis import Redis
 
diff --git a/cachetory/caches/async_.py b/cachetory/caches/async_.py
index cef42d1..2d24eb8 100644
--- a/cachetory/caches/async_.py
+++ b/cachetory/caches/async_.py
@@ -1,11 +1,12 @@
 from __future__ import annotations
 
 from asyncio import get_running_loop
+from collections.abc import Iterable, Mapping
 from concurrent.futures import Executor
 from contextlib import AbstractAsyncContextManager
 from datetime import timedelta
 from types import TracebackType
-from typing import Generic, Iterable, Mapping
+from typing import Generic
 
 from cachetory.caches.private import DefaultT
 from cachetory.interfaces.backends.async_ import AsyncBackend
diff --git a/cachetory/caches/sync.py b/cachetory/caches/sync.py
index 14e93a6..188476b 100644
--- a/cachetory/caches/sync.py
+++ b/cachetory/caches/sync.py
@@ -1,7 +1,8 @@
+from collections.abc import Iterable, Mapping
 from contextlib import AbstractContextManager
 from datetime import timedelta
 from types import TracebackType
-from typing import Dict, Generic, Iterable, Mapping, Optional, Tuple, Type, Union
+from typing import Generic, Optional, Union
 
 from cachetory.caches.private import DefaultT
 from cachetory.interfaces.backends.private import WireT
@@ -66,7 +67,7 @@ def get(self, key: str, default: DefaultT = None) -> Union[ValueT, DefaultT]:  #
         except KeyError:
             return default
 
-    def get_many(self, *keys: str) -> Dict[str, ValueT]:
+    def get_many(self, *keys: str) -> dict[str, ValueT]:
         """
         Retrieve many values from the cache.
 
@@ -118,7 +119,7 @@ def set(  # noqa: A003
             if_not_exists=if_not_exists,
         )
 
-    def set_many(self, items: Union[Iterable[Tuple[str, ValueT]], Mapping[str, ValueT]]) -> None:
+    def set_many(self, items: Union[Iterable[tuple[str, ValueT]], Mapping[str, ValueT]]) -> None:
         """
         Set many cache items at once.
 
@@ -154,7 +155,7 @@ def __delitem__(self, key: str) -> None:
 
     def __exit__(
         self,
-        exc_type: Optional[Type[BaseException]],
+        exc_type: Optional[type[BaseException]],
         exc_val: Optional[BaseException],
         exc_tb: Optional[TracebackType],
     ) -> None:
diff --git a/cachetory/decorators/async_.py b/cachetory/decorators/async_.py
index 90df99a..c481cc4 100644
--- a/cachetory/decorators/async_.py
+++ b/cachetory/decorators/async_.py
@@ -1,8 +1,9 @@
 from __future__ import annotations
 
+from collections.abc import Awaitable
 from datetime import timedelta
 from functools import wraps
-from typing import Awaitable, Callable, Protocol
+from typing import Callable, Protocol
 
 from typing_extensions import ParamSpec
 
diff --git a/cachetory/interfaces/backends/async_.py b/cachetory/interfaces/backends/async_.py
index ae4b806..b620e77 100644
--- a/cachetory/interfaces/backends/async_.py
+++ b/cachetory/interfaces/backends/async_.py
@@ -8,10 +8,11 @@
 from __future__ import annotations
 
 from abc import ABCMeta, abstractmethod
+from collections.abc import AsyncIterable, Iterable
 from contextlib import AbstractAsyncContextManager, AbstractContextManager
 from datetime import datetime, timedelta, timezone
 from types import TracebackType
-from typing import Any, AsyncIterable, Generic, Iterable
+from typing import Any, Generic
 
 from typing_extensions import Never, Protocol
 
diff --git a/cachetory/interfaces/backends/sync.py b/cachetory/interfaces/backends/sync.py
index 993b8df..09fca39 100644
--- a/cachetory/interfaces/backends/sync.py
+++ b/cachetory/interfaces/backends/sync.py
@@ -8,10 +8,11 @@
 from __future__ import annotations
 
 from abc import ABCMeta, abstractmethod
+from collections.abc import Iterable
 from contextlib import AbstractContextManager
 from datetime import datetime, timedelta
 from types import TracebackType
-from typing import Generic, Iterable
+from typing import Generic
 
 from typing_extensions import Protocol
 
diff --git a/cachetory/private/functools.py b/cachetory/private/functools.py
index a28120b..2ed3c02 100644
--- a/cachetory/private/functools.py
+++ b/cachetory/private/functools.py
@@ -1,8 +1,9 @@
 from __future__ import annotations
 
+from collections.abc import Awaitable
 from functools import wraps
 from inspect import iscoroutinefunction
-from typing import Any, Awaitable, Callable, TypeVar, cast
+from typing import Any, Callable, TypeVar, cast
 
 T = TypeVar("T")
 
diff --git a/cachetory/serializers/chained.py b/cachetory/serializers/chained.py
index e1ca722..a379c13 100644
--- a/cachetory/serializers/chained.py
+++ b/cachetory/serializers/chained.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
-from typing import Any, Generic, Iterable, cast
+from collections.abc import Iterable
+from typing import Any, Generic, cast
 from urllib.parse import urlparse
 
 from cachetory.interfaces.backends.private import WireT
diff --git a/cachetory/serializers/compressors/zlib.py b/cachetory/serializers/compressors/zlib.py
index ec67d51..e728921 100644
--- a/cachetory/serializers/compressors/zlib.py
+++ b/cachetory/serializers/compressors/zlib.py
@@ -1,10 +1,10 @@
 from __future__ import annotations
 
 import zlib
+from typing import Annotated
 from urllib.parse import parse_qsl, urlparse
 
 from pydantic import BaseModel, Field
-from typing_extensions import Annotated
 
 from cachetory.interfaces.serializers import Serializer
 
diff --git a/cachetory/serializers/compressors/zstd.py b/cachetory/serializers/compressors/zstd.py
index fb159be..8ae8948 100644
--- a/cachetory/serializers/compressors/zstd.py
+++ b/cachetory/serializers/compressors/zstd.py
@@ -1,10 +1,10 @@
 from __future__ import annotations
 
+from typing import Annotated
 from urllib.parse import parse_qsl, urlparse
 
 import zstd  # type: ignore
 from pydantic import BaseModel, Field
-from typing_extensions import Annotated
 
 from cachetory.interfaces.serializers import Serializer
 
diff --git a/cachetory/serializers/pickle.py b/cachetory/serializers/pickle.py
index 714d56e..7e0f2b7 100644
--- a/cachetory/serializers/pickle.py
+++ b/cachetory/serializers/pickle.py
@@ -1,11 +1,10 @@
 from __future__ import annotations
 
 import pickle
-from typing import Generic
+from typing import Annotated, Generic
 from urllib.parse import parse_qsl, urlparse
 
 from pydantic import BaseModel, Field
-from typing_extensions import Annotated
 
 from cachetory.interfaces.serializers import Serializer, ValueT
 
diff --git a/poetry.lock b/poetry.lock
index dc42c53..be41b0c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -11,9 +11,6 @@ files = [
     {file = "annotated_types-0.6.0.tar.gz", hash = "sha256:563339e807e53ffd9c267e99fc6d9ea23eb8443c08f112651963e24e22f84a5d"},
 ]
 
-[package.dependencies]
-typing-extensions = {version = ">=4.0.0", markers = "python_version < \"3.9\""}
-
 [[package]]
 name = "asgiref"
 version = "3.7.2"
@@ -54,40 +51,11 @@ files = [
 ]
 
 [package.dependencies]
-pytz = {version = ">=2015.7", markers = "python_version < \"3.9\""}
 setuptools = {version = "*", markers = "python_version >= \"3.12\""}
 
 [package.extras]
 dev = ["freezegun (>=1.0,<2.0)", "pytest (>=6.0)", "pytest-cov"]
 
-[[package]]
-name = "backports-zoneinfo"
-version = "0.2.1"
-description = "Backport of the standard library zoneinfo module"
-optional = true
-python-versions = ">=3.6"
-files = [
-    {file = "backports.zoneinfo-0.2.1-cp36-cp36m-macosx_10_14_x86_64.whl", hash = "sha256:da6013fd84a690242c310d77ddb8441a559e9cb3d3d59ebac9aca1a57b2e18bc"},
-    {file = "backports.zoneinfo-0.2.1-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:89a48c0d158a3cc3f654da4c2de1ceba85263fafb861b98b59040a5086259722"},
-    {file = "backports.zoneinfo-0.2.1-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:1c5742112073a563c81f786e77514969acb58649bcdf6cdf0b4ed31a348d4546"},
-    {file = "backports.zoneinfo-0.2.1-cp36-cp36m-win32.whl", hash = "sha256:e8236383a20872c0cdf5a62b554b27538db7fa1bbec52429d8d106effbaeca08"},
-    {file = "backports.zoneinfo-0.2.1-cp36-cp36m-win_amd64.whl", hash = "sha256:8439c030a11780786a2002261569bdf362264f605dfa4d65090b64b05c9f79a7"},
-    {file = "backports.zoneinfo-0.2.1-cp37-cp37m-macosx_10_14_x86_64.whl", hash = "sha256:f04e857b59d9d1ccc39ce2da1021d196e47234873820cbeaad210724b1ee28ac"},
-    {file = "backports.zoneinfo-0.2.1-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:17746bd546106fa389c51dbea67c8b7c8f0d14b5526a579ca6ccf5ed72c526cf"},
-    {file = "backports.zoneinfo-0.2.1-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:5c144945a7752ca544b4b78c8c41544cdfaf9786f25fe5ffb10e838e19a27570"},
-    {file = "backports.zoneinfo-0.2.1-cp37-cp37m-win32.whl", hash = "sha256:e55b384612d93be96506932a786bbcde5a2db7a9e6a4bb4bffe8b733f5b9036b"},
-    {file = "backports.zoneinfo-0.2.1-cp37-cp37m-win_amd64.whl", hash = "sha256:a76b38c52400b762e48131494ba26be363491ac4f9a04c1b7e92483d169f6582"},
-    {file = "backports.zoneinfo-0.2.1-cp38-cp38-macosx_10_14_x86_64.whl", hash = "sha256:8961c0f32cd0336fb8e8ead11a1f8cd99ec07145ec2931122faaac1c8f7fd987"},
-    {file = "backports.zoneinfo-0.2.1-cp38-cp38-manylinux1_i686.whl", hash = "sha256:e81b76cace8eda1fca50e345242ba977f9be6ae3945af8d46326d776b4cf78d1"},
-    {file = "backports.zoneinfo-0.2.1-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:7b0a64cda4145548fed9efc10322770f929b944ce5cee6c0dfe0c87bf4c0c8c9"},
-    {file = "backports.zoneinfo-0.2.1-cp38-cp38-win32.whl", hash = "sha256:1b13e654a55cd45672cb54ed12148cd33628f672548f373963b0bff67b217328"},
-    {file = "backports.zoneinfo-0.2.1-cp38-cp38-win_amd64.whl", hash = "sha256:4a0f800587060bf8880f954dbef70de6c11bbe59c673c3d818921f042f9954a6"},
-    {file = "backports.zoneinfo-0.2.1.tar.gz", hash = "sha256:fadbfe37f74051d024037f223b8e001611eac868b5c5b06144ef4d8b799862f2"},
-]
-
-[package.extras]
-tzdata = ["tzdata"]
-
 [[package]]
 name = "black"
 version = "24.8.0"
@@ -538,7 +506,6 @@ files = [
 
 [package.dependencies]
 asgiref = ">=3.6.0,<4"
-"backports.zoneinfo" = {version = "*", markers = "python_version < \"3.9\""}
 sqlparse = ">=0.3.1"
 tzdata = {version = "*", markers = "sys_platform == \"win32\""}
 
@@ -2038,5 +2005,5 @@ zstd = ["zstd"]
 
 [metadata]
 lock-version = "2.0"
-python-versions = "^3.8.0"
-content-hash = "9df07a71175d9859f10e7f8ea473019eb4b2f5c2bfc11adbb5106155a63e3942"
+python-versions = "^3.9.0"
+content-hash = "7a63309ea0501904d37a931e583f73e1cbcf3d2c5982cf1885288fc7989b9cd9"
diff --git a/pyproject.toml b/pyproject.toml
index ece3233..e9672bb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [project]
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 
 [tool.poetry]
 authors = [
@@ -20,7 +20,6 @@ classifiers = [
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
     "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",
@@ -37,7 +36,7 @@ build-backend = "poetry_dynamic_versioning.backend"
 django = {version = "^4.0.0 || ^5.0.0", optional = true}
 ormsgpack = {version = "^1.4.0", optional = true, markers = "platform_python_implementation == 'CPython'"}
 pydantic = ">2.0.0.0, <3.0.0.0"
-python = "^3.8.0"
+python = "^3.9.0"
 redis = {version = "^4.4.2 || ^5.0.0", optional = true}
 typing-extensions = "^4.4.0"
 zstd = {version = "^1.5.2.6", optional = true}
@@ -75,11 +74,11 @@ pillow = "10.4.0"
 
 [tool.black]
 line-length = 120
-target_version = ["py38", "py39", "py310", "py311"]
+target_version = ["py39", "py310", "py311", "py312"]
 
 [tool.ruff]
 line-length = 120
-target-version = "py38"
+target-version = "py39"
 
 [tool.ruff.lint]
 select = [
diff --git a/tests/backends/async_/test_django.py b/tests/backends/async_/test_django.py
index e7a551b..39543c5 100644
--- a/tests/backends/async_/test_django.py
+++ b/tests/backends/async_/test_django.py
@@ -1,4 +1,4 @@
-from typing import AsyncIterable
+from collections.abc import AsyncIterable
 
 import pytest
 
diff --git a/tests/backends/async_/test_memory.py b/tests/backends/async_/test_memory.py
index d4954a5..51a0652 100644
--- a/tests/backends/async_/test_memory.py
+++ b/tests/backends/async_/test_memory.py
@@ -1,5 +1,5 @@
+from collections.abc import AsyncIterable
 from datetime import datetime, timedelta, timezone
-from typing import AsyncIterable
 
 from freezegun import freeze_time
 from pytest import fixture, mark, raises
diff --git a/tests/backends/async_/test_redis.py b/tests/backends/async_/test_redis.py
index 61360d2..f7636b0 100644
--- a/tests/backends/async_/test_redis.py
+++ b/tests/backends/async_/test_redis.py
@@ -1,6 +1,6 @@
 from asyncio import sleep
+from collections.abc import AsyncIterable
 from datetime import timedelta
-from typing import AsyncIterable
 
 from pytest import fixture, mark, raises
 
diff --git a/tests/backends/sync/test_django.py b/tests/backends/sync/test_django.py
index 898519b..a4a0869 100644
--- a/tests/backends/sync/test_django.py
+++ b/tests/backends/sync/test_django.py
@@ -1,4 +1,4 @@
-from typing import Iterable
+from collections.abc import Iterable
 
 import pytest
 
diff --git a/tests/backends/sync/test_memory.py b/tests/backends/sync/test_memory.py
index dd1f2c5..064e385 100644
--- a/tests/backends/sync/test_memory.py
+++ b/tests/backends/sync/test_memory.py
@@ -1,5 +1,5 @@
+from collections.abc import Iterable
 from datetime import datetime, timedelta, timezone
-from typing import Iterable
 
 from freezegun import freeze_time
 from pytest import fixture, raises
diff --git a/tests/backends/sync/test_redis.py b/tests/backends/sync/test_redis.py
index ef18704..8474de3 100644
--- a/tests/backends/sync/test_redis.py
+++ b/tests/backends/sync/test_redis.py
@@ -1,6 +1,6 @@
+from collections.abc import Iterable
 from datetime import timedelta
 from time import sleep
-from typing import Iterable
 
 from pytest import fixture, raises
 
diff --git a/tests/decorators/test_shared.py b/tests/decorators/test_shared.py
index 7cc7e5c..d7aa30b 100644
--- a/tests/decorators/test_shared.py
+++ b/tests/decorators/test_shared.py
@@ -1,4 +1,4 @@
-from typing import Any, Callable, Dict, Tuple
+from typing import Any, Callable
 
 from pytest import mark
 
@@ -32,8 +32,8 @@ def _callable() -> None:
 )
 def test_make_default_key(
     callable_: Callable[..., Any],
-    args: Tuple[Any, ...],
-    kwargs: Dict[str, Any],
+    args: tuple[Any, ...],
+    kwargs: dict[str, Any],
     expected_key: str,
 ) -> None:
     assert make_default_key(callable_, *args, **kwargs) == expected_key
diff --git a/tests/private/test_functools.py b/tests/private/test_functools.py
index b4a741f..e070065 100644
--- a/tests/private/test_functools.py
+++ b/tests/private/test_functools.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
-from typing import Awaitable, Callable
+from collections.abc import Awaitable
+from typing import Callable
 
 import pytest
 
diff --git a/tests/serializers/test_chained.py b/tests/serializers/test_chained.py
index 38d53ed..d98599e 100644
--- a/tests/serializers/test_chained.py
+++ b/tests/serializers/test_chained.py
@@ -1,4 +1,5 @@
-from typing import Any, Iterable, List, Type, cast
+from collections.abc import Iterable
+from typing import Any, cast
 
 import pytest
 from pytest import mark, raises
@@ -23,7 +24,7 @@
         ("pickle+zstd://", [PickleSerializer, ZstdCompressor]),
     ],
 )
-def test_layers(url: str, expected_layers: List[Type[Serializer[Any, Any]]]) -> None:
+def test_layers(url: str, expected_layers: list[type[Serializer[Any, Any]]]) -> None:
     assert [
         type(layer) for layer in cast(Iterable[Serializer[Any, Any]], ChainedSerializer.from_url(url)._layers)
     ] == expected_layers