diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e93ce195a..e6e909fca 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,7 +15,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  STABLE_PYTHON_VERSION: "3.12"
+  STABLE_PYTHON_VERSION: "3.13"
   HATCH_VERBOSE: "1"
   FORCE_COLOR: "1"
   CIBW_BUILD_FRONTEND: build
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index c1ca1c5f7..7a09bc6e3 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -11,7 +11,7 @@ on:
       - master
 
 env:
-  STABLE_PYTHON_VERSION: "3.12"
+  STABLE_PYTHON_VERSION: "3.13"
   FORCE_COLOR: "1"
   HATCH_VERBOSE: "1"
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5859ce1c4..18d09e6ee 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  STABLE_PYTHON_VERSION: "3.12"
+  STABLE_PYTHON_VERSION: "3.13"
   PYTEST_ADDOPTS: --color=yes
   HATCH_VERBOSE: "1"
   FORCE_COLOR: "1"
@@ -67,12 +67,12 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         experimental: [false]
         include:
           - # Run tests against the next Python version, but no need for the full list of OSes.
             os: ubuntu-latest
-            python-version: "3.13.0-alpha.0 - 3.13"
+            python-version: "3.14"
             experimental: true
 
     steps:
@@ -133,16 +133,12 @@ jobs:
       fail-fast: false
       matrix:
         os: [windows-latest, macos-latest]
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
-        # Python 3.8 and 3.9 aren't supported on macos-latest (ARM)
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        # Python 3.9 aren't supported on macos-latest (ARM)
         exclude:
-          - os: macos-latest
-            python-version: "3.8"
           - os: macos-latest
             python-version: "3.9"
         include:
-          - os: macos-13
-            python-version: "3.8"
           - os: macos-13
             python-version: "3.9"
 
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 88ae376e1..a30f8afc9 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -81,5 +81,5 @@ repos:
         entry: hatch run mypy
         language: system
         types: [python]
-        exclude: ^(src/pact|tests|examples/tests)/(?!v3/).*\.py$
+        exclude: ^(src/pact|tests|examples|examples/tests)/(?!v3/).*\.py$
         stages: [pre-push]
diff --git a/docs/scripts/other.py b/docs/scripts/other.py
index e6f16148e..7a309b231 100644
--- a/docs/scripts/other.py
+++ b/docs/scripts/other.py
@@ -84,10 +84,13 @@ def is_binary(buffer: bytes) -> bool:
     if is_binary(buf):
         if source_path.stat().st_size < 16 * 2**20:
             # Copy the file only if it's less than 16MB.
-            with Path(source_path).open("rb") as fi, mkdocs_gen_files.open(
-                dest_path,
-                "wb",
-            ) as fd:
+            with (
+                Path(source_path).open("rb") as fi,
+                mkdocs_gen_files.open(
+                    dest_path,
+                    "wb",
+                ) as fd,
+            ):
                 fd.write(fi.read())
         else:
             # File is too big, create a redirect.
@@ -109,9 +112,12 @@ def is_binary(buffer: bytes) -> bool:
             )
 
     else:
-        with Path(source_path).open("r", encoding="utf-8") as fi, mkdocs_gen_files.open(
-            dest_path,
-            "w",
-            encoding="utf-8",
-        ) as fd:
+        with (
+            Path(source_path).open("r", encoding="utf-8") as fi,
+            mkdocs_gen_files.open(
+                dest_path,
+                "w",
+                encoding="utf-8",
+            ) as fd,
+        ):
             fd.write(fi.read())
diff --git a/examples/conftest.py b/examples/conftest.py
index b8b06bddc..a9c7784f1 100644
--- a/examples/conftest.py
+++ b/examples/conftest.py
@@ -13,12 +13,15 @@
 from __future__ import annotations
 
 from pathlib import Path
-from typing import Any, Generator, Union
+from typing import TYPE_CHECKING, Any
 
 import pytest
 from testcontainers.compose import DockerCompose  # type: ignore[import-untyped]
 from yarl import URL
 
+if TYPE_CHECKING:
+    from collections.abc import Generator
+
 EXAMPLE_DIR = Path(__file__).parent.resolve()
 
 
@@ -34,7 +37,7 @@ def broker(request: pytest.FixtureRequest) -> Generator[URL, Any, None]:
     Otherwise, the Pact broker is started in a container. The URL of the
     containerised broker is then returned.
     """
-    broker_url: Union[str, None] = request.config.getoption("--broker-url")
+    broker_url: str | None = request.config.getoption("--broker-url")
 
     # If we have been given a broker URL, there's nothing more to do here and we
     # can return early.
diff --git a/examples/src/fastapi.py b/examples/src/fastapi.py
index 91558a8df..c9e919c08 100644
--- a/examples/src/fastapi.py
+++ b/examples/src/fastapi.py
@@ -29,7 +29,7 @@
 
 import logging
 from datetime import datetime, timezone
-from typing import Annotated, Any, Dict, Optional
+from typing import Annotated, Any, Optional
 
 from pydantic import BaseModel, PlainSerializer
 
@@ -90,7 +90,7 @@ def __repr__(self) -> str:
 be mocked out to avoid the need for a real database. An example of this can be
 found in the [test suite][examples.tests.test_01_provider_fastapi].
 """
-FAKE_DB: Dict[int, User] = {}
+FAKE_DB: dict[int, User] = {}
 
 
 @app.get("/users/{uid}")
diff --git a/examples/src/flask.py b/examples/src/flask.py
index 256616434..4d3b09a4c 100644
--- a/examples/src/flask.py
+++ b/examples/src/flask.py
@@ -22,7 +22,7 @@
 import logging
 from dataclasses import dataclass
 from datetime import datetime, timezone
-from typing import Any, Dict, Tuple
+from typing import Any
 
 from flask import Flask, Response, abort, jsonify, request
 
@@ -89,11 +89,11 @@ def dict(self) -> dict[str, Any]:
 be mocked out to avoid the need for a real database. An example of this can be
 found in the [test suite][examples.tests.test_01_provider_flask].
 """
-FAKE_DB: Dict[int, User] = {}
+FAKE_DB: dict[int, User] = {}
 
 
 @app.route("/users/<int:uid>")
-def get_user_by_id(uid: int) -> Response | Tuple[Response, int]:
+def get_user_by_id(uid: int) -> Response | tuple[Response, int]:
     """
     Fetch a user by their ID.
 
@@ -114,7 +114,7 @@ def create_user() -> Response:
     if request.json is None:
         abort(400, description="Invalid JSON data")
 
-    user: Dict[str, Any] = request.json
+    user: dict[str, Any] = request.json
     uid = len(FAKE_DB)
     FAKE_DB[uid] = User(
         id=uid,
@@ -129,7 +129,7 @@ def create_user() -> Response:
 
 
 @app.route("/users/<int:uid>", methods=["DELETE"])
-def delete_user(uid: int) -> Tuple[str | Response, int]:
+def delete_user(uid: int) -> tuple[str | Response, int]:
     if uid not in FAKE_DB:
         return jsonify({"detail": "User not found"}), 404
     del FAKE_DB[uid]
diff --git a/examples/src/message.py b/examples/src/message.py
index 815719903..13f14c49f 100644
--- a/examples/src/message.py
+++ b/examples/src/message.py
@@ -10,7 +10,7 @@
 from __future__ import annotations
 
 from pathlib import Path
-from typing import Any, Dict, Union
+from typing import Any
 
 
 class Filesystem:
@@ -58,7 +58,7 @@ def __init__(self) -> None:
         """
         self.fs = Filesystem()
 
-    def process(self, event: Dict[str, Any]) -> Union[str, None]:
+    def process(self, event: dict[str, Any]) -> str | None:
         """
         Process an event from the queue.
 
@@ -84,7 +84,7 @@ def process(self, event: Dict[str, Any]) -> Union[str, None]:
         raise ValueError(msg)
 
     @staticmethod
-    def validate_event(event: Union[Dict[str, Any], Any]) -> None:  # noqa: ANN401
+    def validate_event(event: dict[str, Any] | Any) -> None:  # noqa: ANN401
         """
         Validates the event received from the queue.
 
diff --git a/examples/tests/test_00_consumer.py b/examples/tests/test_00_consumer.py
index 273b4405d..5fed1e449 100644
--- a/examples/tests/test_00_consumer.py
+++ b/examples/tests/test_00_consumer.py
@@ -17,7 +17,7 @@
 
 import logging
 from http import HTTPStatus
-from typing import TYPE_CHECKING, Any, Dict, Generator
+from typing import TYPE_CHECKING, Any
 
 import pytest
 import requests
@@ -27,6 +27,7 @@
 from pact import Consumer, Format, Like, Provider
 
 if TYPE_CHECKING:
+    from collections.abc import Generator
     from pathlib import Path
 
     from pact.pact import Pact
@@ -104,7 +105,7 @@ def test_get_existing_user(pact: Pact, user_consumer: UserConsumer) -> None:
     # what it needs from the provider (as opposed to the full schema). Should
     # the provider later decide to add or remove fields, Pact's consumer-driven
     # approach will ensure that interaction is still valid.
-    expected: Dict[str, Any] = {
+    expected: dict[str, Any] = {
         "id": Format().integer,
         "name": "Verna Hampton",
         "created_on": Format().iso_8601_datetime(),
@@ -154,7 +155,7 @@ def test_create_user(pact: Pact, user_consumer: UserConsumer) -> None:
     status code is 200 and the response body matches the expected user data.
     """
     body = {"name": "Verna Hampton"}
-    expected_response: Dict[str, Any] = {
+    expected_response: dict[str, Any] = {
         "id": 124,
         "name": "Verna Hampton",
         "created_on": Format().iso_8601_datetime(),
diff --git a/examples/tests/test_01_provider_fastapi.py b/examples/tests/test_01_provider_fastapi.py
index 1d77f5446..f0328b4f2 100644
--- a/examples/tests/test_01_provider_fastapi.py
+++ b/examples/tests/test_01_provider_fastapi.py
@@ -27,7 +27,7 @@
 import time
 from datetime import datetime, timezone
 from multiprocessing import Process
-from typing import Any, Dict, Generator, Union
+from typing import TYPE_CHECKING, Any, Optional
 from unittest.mock import MagicMock
 
 import pytest
@@ -38,6 +38,9 @@
 from examples.src.fastapi import User, app
 from pact import Verifier  # type: ignore[import-untyped]
 
+if TYPE_CHECKING:
+    from collections.abc import Generator
+
 PROVIDER_URL = URL("http://localhost:8080")
 
 
@@ -51,7 +54,7 @@ class ProviderState(BaseModel):
 @app.post("/_pact/provider_states")
 async def mock_pact_provider_states(
     state: ProviderState,
-) -> Dict[str, Union[str, None]]:
+) -> dict[str, Optional[str]]:
     """
     Define the provider state.
 
@@ -146,7 +149,7 @@ def mock_post_request_to_create_user() -> None:
     """
     import examples.src.fastapi
 
-    local_db: Dict[int, User] = {}
+    local_db: dict[int, User] = {}
 
     def local_setitem(key: int, value: User) -> None:
         local_db[key] = value
diff --git a/examples/tests/test_01_provider_flask.py b/examples/tests/test_01_provider_flask.py
index 797e25da8..bc6d2e037 100644
--- a/examples/tests/test_01_provider_flask.py
+++ b/examples/tests/test_01_provider_flask.py
@@ -27,7 +27,7 @@
 import time
 from datetime import datetime, timezone
 from multiprocessing import Process
-from typing import Any, Dict, Generator, Union
+from typing import TYPE_CHECKING, Any
 from unittest.mock import MagicMock
 
 import pytest
@@ -37,11 +37,14 @@
 from flask import request
 from pact import Verifier  # type: ignore[import-untyped]
 
+if TYPE_CHECKING:
+    from collections.abc import Generator
+
 PROVIDER_URL = URL("http://localhost:8080")
 
 
 @app.route("/_pact/provider_states", methods=["POST"])
-async def mock_pact_provider_states() -> Dict[str, Union[str, None]]:
+async def mock_pact_provider_states() -> dict[str, str | None]:
     """
     Define the provider state.
 
@@ -139,7 +142,7 @@ def mock_post_request_to_create_user() -> None:
     """
     import examples.src.flask
 
-    local_db: Dict[int, User] = {}
+    local_db: dict[int, User] = {}
 
     def local_setitem(key: int, value: User) -> None:
         local_db[key] = value
diff --git a/examples/tests/test_02_message_consumer.py b/examples/tests/test_02_message_consumer.py
index f5689b839..1498196c7 100644
--- a/examples/tests/test_02_message_consumer.py
+++ b/examples/tests/test_02_message_consumer.py
@@ -31,7 +31,7 @@
 from __future__ import annotations
 
 import logging
-from typing import TYPE_CHECKING, Any, Generator
+from typing import TYPE_CHECKING, Any
 from unittest.mock import MagicMock
 
 import pytest
@@ -40,6 +40,7 @@
 from pact import MessageConsumer, MessagePact, Provider
 
 if TYPE_CHECKING:
+    from collections.abc import Generator
     from pathlib import Path
 
     from yarl import URL
diff --git a/examples/tests/test_03_message_provider.py b/examples/tests/test_03_message_provider.py
index 9a9ff3f7d..c657d5d2c 100644
--- a/examples/tests/test_03_message_provider.py
+++ b/examples/tests/test_03_message_provider.py
@@ -26,7 +26,7 @@
 from __future__ import annotations
 
 from pathlib import Path
-from typing import TYPE_CHECKING, Dict
+from typing import TYPE_CHECKING
 
 from flask import Flask
 from pact import MessageProvider
@@ -38,7 +38,7 @@
 PACT_DIR = (Path(__file__).parent / "pacts").resolve()
 
 
-def generate_write_message() -> Dict[str, str]:
+def generate_write_message() -> dict[str, str]:
     return {
         "action": "WRITE",
         "path": "test.txt",
@@ -46,7 +46,7 @@ def generate_write_message() -> Dict[str, str]:
     }
 
 
-def generate_read_message() -> Dict[str, str]:
+def generate_read_message() -> dict[str, str]:
     return {
         "action": "READ",
         "path": "test.txt",
diff --git a/examples/tests/v3/basic_flask_server.py b/examples/tests/v3/basic_flask_server.py
index 18b3c0c95..1dfbd406f 100644
--- a/examples/tests/v3/basic_flask_server.py
+++ b/examples/tests/v3/basic_flask_server.py
@@ -8,12 +8,13 @@
 import subprocess
 import sys
 import time
+from collections.abc import Generator
 from contextlib import contextmanager
 from datetime import datetime
 from pathlib import Path
 from random import randint, uniform
 from threading import Thread
-from typing import Generator, NoReturn
+from typing import NoReturn
 
 import requests
 from yarl import URL
diff --git a/examples/tests/v3/provider_server.py b/examples/tests/v3/provider_server.py
index 23ca0e2ad..9b42ec4e7 100644
--- a/examples/tests/v3/provider_server.py
+++ b/examples/tests/v3/provider_server.py
@@ -15,7 +15,7 @@
 from importlib import import_module
 from pathlib import Path
 from threading import Thread
-from typing import Generator, NoReturn, Tuple
+from typing import TYPE_CHECKING, NoReturn
 
 import requests
 
@@ -25,6 +25,9 @@
 
 import flask
 
+if TYPE_CHECKING:
+    from collections.abc import Generator
+
 logger = logging.getLogger(__name__)
 
 
@@ -82,7 +85,7 @@ def ping() -> str:
             return "pong"
 
         @self.app.route(self.produce_message_url, methods=["POST"])
-        def produce_message() -> flask.Response | Tuple[str, int]:
+        def produce_message() -> flask.Response | tuple[str, int]:
             """
             Route a message request to the handler function.
 
@@ -101,7 +104,7 @@ def produce_message() -> flask.Response | Tuple[str, int]:
                 return str(e), 500
 
         @self.app.route(self.set_provider_state_url, methods=["POST"])
-        def set_provider_state() -> Tuple[str, int]:
+        def set_provider_state() -> tuple[str, int]:
             """
             Calls the state provider function with the state provided in the request.
 
diff --git a/examples/tests/v3/test_00_consumer.py b/examples/tests/v3/test_00_consumer.py
index 523d55d25..7eeda0acd 100644
--- a/examples/tests/v3/test_00_consumer.py
+++ b/examples/tests/v3/test_00_consumer.py
@@ -18,9 +18,10 @@
 """
 
 import json
+from collections.abc import Generator
 from datetime import datetime, timezone
 from pathlib import Path
-from typing import Any, Dict, Generator
+from typing import Any
 
 import pytest
 import requests
@@ -72,7 +73,7 @@ def test_get_existing_user(pact: Pact) -> None:
     code as shown in
     [`test_get_non_existent_user`](#test_get_non_existent_user).
     """
-    expected: Dict[str, Any] = {
+    expected: dict[str, Any] = {
         "id": 123,
         "name": "Verna Hampton",
         "created_on": match.datetime(
@@ -136,7 +137,7 @@ def test_create_user(pact: Pact) -> None:
     status code is 200 and the response body matches the expected user data.
     """
     body = {"name": "Verna Hampton"}
-    expected_response: Dict[str, Any] = {
+    expected_response: dict[str, Any] = {
         "id": 124,
         "name": "Verna Hampton",
         "created_on": match.datetime(
diff --git a/examples/tests/v3/test_01_fastapi_provider.py b/examples/tests/v3/test_01_fastapi_provider.py
index 25174173e..1e181a4bb 100644
--- a/examples/tests/v3/test_01_fastapi_provider.py
+++ b/examples/tests/v3/test_01_fastapi_provider.py
@@ -29,7 +29,7 @@
 import time
 from datetime import datetime, timezone
 from multiprocessing import Process
-from typing import TYPE_CHECKING, Callable, Dict, Literal
+from typing import TYPE_CHECKING, Callable, Literal
 from unittest.mock import MagicMock
 
 import uvicorn
@@ -45,7 +45,7 @@
 async def mock_pact_provider_states(
     action: Literal["setup", "teardown"],
     state: str,
-) -> Dict[Literal["result"], str]:
+) -> dict[Literal["result"], str]:
     """
     Handler for the provider state callback.
 
@@ -226,7 +226,7 @@ def mock_post_request_to_create_user() -> None:
     """
     import examples.src.fastapi
 
-    local_db: Dict[int, User] = {}
+    local_db: dict[int, User] = {}
 
     def local_setitem(key: int, value: User) -> None:
         local_db[key] = value
diff --git a/examples/tests/v3/test_02_message_consumer.py b/examples/tests/v3/test_02_message_consumer.py
index 58dc405c1..a3d8b9628 100644
--- a/examples/tests/v3/test_02_message_consumer.py
+++ b/examples/tests/v3/test_02_message_consumer.py
@@ -13,8 +13,6 @@
 from typing import (
     TYPE_CHECKING,
     Any,
-    Dict,
-    Generator,
 )
 from unittest.mock import MagicMock
 
@@ -24,7 +22,7 @@
 from pact.v3.pact import Pact
 
 if TYPE_CHECKING:
-    from collections.abc import Callable
+    from collections.abc import Callable, Generator
 
 
 log = logging.getLogger(__name__)
@@ -90,7 +88,7 @@ def handler() -> Handler:
 @pytest.fixture
 def verifier(
     handler: Handler,
-) -> Generator[Callable[[str | bytes | None, Dict[str, Any]], None], Any, None]:
+) -> Generator[Callable[[str | bytes | None, dict[str, Any]], None], Any, None]:
     """
     Verifier function for the Pact.
 
@@ -104,7 +102,7 @@ def verifier(
     """
     assert isinstance(handler.fs, MagicMock), "Handler filesystem not mocked"
 
-    def _verifier(msg: str | bytes | None, context: Dict[str, Any]) -> None:
+    def _verifier(msg: str | bytes | None, context: dict[str, Any]) -> None:
         assert msg is not None, "Message is None"
         data = json.loads(msg)
         log.info(
@@ -121,7 +119,7 @@ def _verifier(msg: str | bytes | None, context: Dict[str, Any]) -> None:
 def test_async_message_handler_write(
     pact: Pact,
     handler: Handler,
-    verifier: Callable[[str | bytes | None, Dict[str, Any]], None],
+    verifier: Callable[[str | bytes | None, dict[str, Any]], None],
 ) -> None:
     """
     Create a pact between the message handler and the message provider.
@@ -161,7 +159,7 @@ def test_async_message_handler_write(
 def test_async_message_handler_read(
     pact: Pact,
     handler: Handler,
-    verifier: Callable[[str | bytes | None, Dict[str, Any]], None],
+    verifier: Callable[[str | bytes | None, dict[str, Any]], None],
 ) -> None:
     """
     Create a pact between the message handler and the message provider.
diff --git a/examples/tests/v3/test_03_message_provider.py b/examples/tests/v3/test_03_message_provider.py
index 472829c1e..e3b5d6126 100644
--- a/examples/tests/v3/test_03_message_provider.py
+++ b/examples/tests/v3/test_03_message_provider.py
@@ -8,7 +8,6 @@
 from __future__ import annotations
 
 from pathlib import Path
-from typing import Tuple
 from unittest.mock import MagicMock
 
 from examples.src.message_producer import FileSystemMessageProducer
@@ -29,7 +28,7 @@
 CURRENT_STATE: str | None = None
 
 
-def message_producer_function() -> Tuple[str, str]:
+def message_producer_function() -> tuple[str, str]:
     producer = FileSystemMessageProducer()
     producer.queue = MagicMock()
 
diff --git a/hatch_build.py b/hatch_build.py
index dcb65ec1c..7960f5ffa 100644
--- a/hatch_build.py
+++ b/hatch_build.py
@@ -20,7 +20,7 @@
 import warnings
 import zipfile
 from pathlib import Path
-from typing import Any, Dict
+from typing import Any
 
 import cffi
 import requests
@@ -83,7 +83,7 @@ def clean(self, versions: list[str]) -> None:  # noqa: ARG002
     def initialize(
         self,
         version: str,  # noqa: ARG002
-        build_data: Dict[str, Any],
+        build_data: dict[str, Any],
     ) -> None:
         """Hook into Hatchling's build process."""
         build_data["infer_tag"] = True
@@ -338,9 +338,12 @@ def _pact_lib_extract(self, artifact: Path) -> None:
             msg = f"Unknown artifact type {artifact}"
             raise ValueError(msg)
 
-        with gzip.open(artifact, "rb") as f_in, (
-            self.tmpdir / (artifact.name.split("-")[0] + artifact.suffixes[0])
-        ).open("wb") as f_out:
+        with (
+            gzip.open(artifact, "rb") as f_in,
+            (self.tmpdir / (artifact.name.split("-")[0] + artifact.suffixes[0])).open(
+                "wb"
+            ) as f_out,
+        ):
             shutil.copyfileobj(f_in, f_out)
 
     def _pact_lib_header(self, url: str) -> list[str]:
@@ -364,9 +367,10 @@ def _pact_lib_header(self, url: str) -> list[str]:
         url = url.rsplit("/", 1)[0] + "/pact.h"
         artifact = self._download(url)
         includes: list[str] = []
-        with artifact.open("r", encoding="utf-8") as f_in, (
-            self.tmpdir / "pact.h"
-        ).open("w", encoding="utf-8") as f_out:
+        with (
+            artifact.open("r", encoding="utf-8") as f_in,
+            (self.tmpdir / "pact.h").open("w", encoding="utf-8") as f_out,
+        ):
             for line in f_in:
                 sline = line.strip()
                 if sline.startswith("#include"):
diff --git a/pyproject.toml b/pyproject.toml
index f64ee9780..4a699bb96 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,16 +21,16 @@ classifiers = [
   "Operating System :: Microsoft :: Windows",
   "Operating System :: POSIX :: Linux",
   "Programming Language :: Python",
-  "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: 3 :: Only",
   "Topic :: Software Development :: Testing",
 ]
 
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 
 # Dependencies of Pact Python should be specified using the broadest range
 # compatible version unless:
@@ -172,7 +172,7 @@ installer = "uv"
 features = ["devel-test"]
 
 [[tool.hatch.envs.test.matrix]]
-python = ["3.8", "3.9", "3.10", "3.11", "3.12"]
+python = ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
 ################################################################################
 ## PyTest Configuration
@@ -230,7 +230,6 @@ exclude_lines = [
 ################################################################################
 
 [tool.ruff]
-target-version = "py38"
 
 # TODO: Remove the explicity extend-exclude once astral-sh/ruff#6262 is fixed.
 # https://github.com/pact-foundation/pact-python/issues/458
@@ -308,7 +307,7 @@ docstring-code-format = true
 ################################################################################
 
 [tool.mypy]
-exclude = '^(src/pact|tests)/(?!v3).+\.py$'
+exclude = '^(src/pact|tests|examples|examples/tests)/(?!v3).+\.py$'
 
 ################################################################################
 ## CI Build Wheel
diff --git a/src/pact/v3/ffi.py b/src/pact/v3/ffi.py
index e874aa51f..12b80a376 100644
--- a/src/pact/v3/ffi.py
+++ b/src/pact/v3/ffi.py
@@ -92,14 +92,14 @@
 import typing
 import warnings
 from enum import Enum
-from typing import TYPE_CHECKING, Any, List, Literal, Tuple
-from typing import Generator as GeneratorType
+from typing import TYPE_CHECKING, Any, Literal
 
 from pact.v3._ffi import ffi, lib  # type: ignore[import]
 
 if TYPE_CHECKING:
     import datetime
     from collections.abc import Collection
+    from collections.abc import Generator as GeneratorType
     from pathlib import Path
 
     import cffi
@@ -1169,7 +1169,7 @@ def name(self) -> str:
         """
         return provider_state_get_name(self) or ""
 
-    def parameters(self) -> GeneratorType[Tuple[str, str], None, None]:
+    def parameters(self) -> GeneratorType[tuple[str, str], None, None]:
         """
         Provider State parameters.
 
@@ -7035,7 +7035,7 @@ def verifier_set_publish_options(
     handle: VerifierHandle,
     provider_version: str,
     build_url: str | None,
-    provider_tags: List[str] | None,
+    provider_tags: list[str] | None,
     provider_branch: str | None,
 ) -> None:
     """
@@ -7230,10 +7230,10 @@ def verifier_broker_source_with_selectors(  # noqa: PLR0913
     token: str | None,
     enable_pending: int,
     include_wip_pacts_since: datetime.date | None,
-    provider_tags: List[str],
+    provider_tags: list[str],
     provider_branch: str | None,
-    consumer_version_selectors: List[str],
-    consumer_version_tags: List[str],
+    consumer_version_selectors: list[str],
+    consumer_version_tags: list[str],
 ) -> None:
     """
     Adds a Pact broker as a source to verify.
diff --git a/src/pact/v3/generate/__init__.py b/src/pact/v3/generate/__init__.py
index fb1ece3d6..ba94ca5e5 100644
--- a/src/pact/v3/generate/__init__.py
+++ b/src/pact/v3/generate/__init__.py
@@ -6,7 +6,7 @@
 
 import builtins
 import warnings
-from typing import TYPE_CHECKING, Literal, Mapping, Sequence
+from typing import TYPE_CHECKING, Literal
 
 from pact.v3.generate.generator import (
     Generator,
@@ -15,6 +15,7 @@
 from pact.v3.util import strftime_to_simple_date_format
 
 if TYPE_CHECKING:
+    from collections.abc import Mapping, Sequence
     from types import ModuleType
 
 # ruff: noqa: A001
diff --git a/src/pact/v3/generate/generator.py b/src/pact/v3/generate/generator.py
index 633740be6..c686ac088 100644
--- a/src/pact/v3/generate/generator.py
+++ b/src/pact/v3/generate/generator.py
@@ -6,9 +6,11 @@
 
 from abc import ABC, abstractmethod
 from itertools import chain
-from typing import TYPE_CHECKING, Any, Mapping
+from typing import TYPE_CHECKING, Any
 
 if TYPE_CHECKING:
+    from collections.abc import Mapping
+
     from pact.v3.types import GeneratorType
 
 
diff --git a/src/pact/v3/interaction/_http_interaction.py b/src/pact/v3/interaction/_http_interaction.py
index 08a40a9df..38e4aba52 100644
--- a/src/pact/v3/interaction/_http_interaction.py
+++ b/src/pact/v3/interaction/_http_interaction.py
@@ -6,7 +6,7 @@
 
 import json
 from collections import defaultdict
-from typing import TYPE_CHECKING, Any, Iterable, Literal
+from typing import TYPE_CHECKING, Any, Literal
 
 import pact.v3.ffi
 from pact.v3.interaction._base import Interaction
@@ -14,6 +14,8 @@
 from pact.v3.match.matcher import IntegrationJSONEncoder
 
 if TYPE_CHECKING:
+    from collections.abc import Iterable
+
     try:
         from typing import Self
     except ImportError:
diff --git a/src/pact/v3/match/__init__.py b/src/pact/v3/match/__init__.py
index 43c9446fa..247dbff62 100644
--- a/src/pact/v3/match/__init__.py
+++ b/src/pact/v3/match/__init__.py
@@ -48,7 +48,7 @@
 import datetime as dt
 import warnings
 from decimal import Decimal
-from typing import TYPE_CHECKING, Any, Literal, Mapping, Sequence, TypeVar, overload
+from typing import TYPE_CHECKING, Any, Literal, TypeVar, overload
 
 from pact.v3 import generate
 from pact.v3.match.matcher import (
@@ -62,6 +62,7 @@
 from pact.v3.util import strftime_to_simple_date_format
 
 if TYPE_CHECKING:
+    from collections.abc import Mapping, Sequence
     from types import ModuleType
 
     from pact.v3.generate import Generator
diff --git a/src/pact/v3/match/matcher.py b/src/pact/v3/match/matcher.py
index 1a2499191..1716a9b5d 100644
--- a/src/pact/v3/match/matcher.py
+++ b/src/pact/v3/match/matcher.py
@@ -10,10 +10,10 @@
 from __future__ import annotations
 
 from abc import ABC, abstractmethod
-from collections.abc import Mapping
+from collections.abc import Mapping, Sequence
 from itertools import chain
 from json import JSONEncoder
-from typing import Any, Generic, Sequence, TypeVar
+from typing import Any, Generic, TypeVar
 
 from pact.v3.generate.generator import Generator
 from pact.v3.types import UNSET, Matchable, MatcherType, Unset
diff --git a/src/pact/v3/pact.py b/src/pact/v3/pact.py
index a6e298539..9e69c8298 100644
--- a/src/pact/v3/pact.py
+++ b/src/pact/v3/pact.py
@@ -68,11 +68,7 @@
 from typing import (
     TYPE_CHECKING,
     Callable,
-    Dict,
-    Generator,
-    List,
     Literal,
-    Set,
     overload,
 )
 
@@ -90,6 +86,7 @@
 from pact.v3.interaction._sync_message_interaction import SyncMessageInteraction
 
 if TYPE_CHECKING:
+    from collections.abc import Generator
     from types import TracebackType
 
     from pact.v3.interaction import Interaction
@@ -145,7 +142,7 @@ def __init__(
 
         self._consumer = consumer
         self._provider = provider
-        self._interactions: Set[Interaction] = set()
+        self._interactions: set[Interaction] = set()
         self._handle: pact.v3.ffi.PactHandle = pact.v3.ffi.new_pact(
             consumer,
             provider,
@@ -409,7 +406,7 @@ def interactions(
     @overload
     def verify(
         self,
-        handler: Callable[[str | bytes | None, Dict[str, str]], None],
+        handler: Callable[[str | bytes | None, dict[str, str]], None],
         kind: Literal["Async", "Sync"],
         *,
         raises: Literal[True] = True,
@@ -417,19 +414,19 @@ def verify(
     @overload
     def verify(
         self,
-        handler: Callable[[str | bytes | None, Dict[str, str]], None],
+        handler: Callable[[str | bytes | None, dict[str, str]], None],
         kind: Literal["Async", "Sync"],
         *,
         raises: Literal[False],
-    ) -> List[InteractionVerificationError]: ...
+    ) -> list[InteractionVerificationError]: ...
 
     def verify(
         self,
-        handler: Callable[[str | bytes | None, Dict[str, str]], None],
+        handler: Callable[[str | bytes | None, dict[str, str]], None],
         kind: Literal["Async", "Sync"],
         *,
         raises: bool = True,
-    ) -> List[InteractionVerificationError] | None:
+    ) -> list[InteractionVerificationError] | None:
         """
         Verify message interactions.
 
@@ -463,7 +460,7 @@ def verify(
                 process a message. If set to `False`, then the function will
                 return a list of errors.
         """
-        errors: List[InteractionVerificationError] = []
+        errors: list[InteractionVerificationError] = []
         for message in self.interactions(kind):
             request: pact.v3.ffi.MessageContents | None = None
             if isinstance(message, pact.v3.ffi.SynchronousMessage):
diff --git a/tests/v3/compatibility_suite/conftest.py b/tests/v3/compatibility_suite/conftest.py
index be72eebb6..bb5fdbab2 100644
--- a/tests/v3/compatibility_suite/conftest.py
+++ b/tests/v3/compatibility_suite/conftest.py
@@ -7,8 +7,9 @@
 
 import shutil
 import subprocess
+from collections.abc import Generator
 from pathlib import Path
-from typing import Any, Generator, Union
+from typing import Any
 
 import pytest
 from testcontainers.compose import DockerCompose  # type: ignore[import-untyped]
@@ -53,7 +54,7 @@ def broker_url(request: pytest.FixtureRequest) -> Generator[URL, Any, None]:
     Otherwise, the Pact broker is started in a container. The URL of the
     containerised broker is then returned.
     """
-    broker_url: Union[str, None] = request.config.getoption("--broker-url")
+    broker_url: str | None = request.config.getoption("--broker-url")
 
     # If we have been given a broker URL, there's nothing more to do here and we
     # can return early.
diff --git a/tests/v3/compatibility_suite/test_v3_consumer.py b/tests/v3/compatibility_suite/test_v3_consumer.py
index bfc7de169..0b1e061ff 100644
--- a/tests/v3/compatibility_suite/test_v3_consumer.py
+++ b/tests/v3/compatibility_suite/test_v3_consumer.py
@@ -5,7 +5,7 @@
 import json
 import logging
 import re
-from typing import Any, Generator
+from typing import TYPE_CHECKING, Any
 
 from pytest_bdd import given, parsers, scenario, then
 
@@ -15,6 +15,9 @@
     the_pact_file_for_the_test_is_generated,
 )
 
+if TYPE_CHECKING:
+    from collections.abc import Generator
+
 logger = logging.getLogger(__name__)
 
 ################################################################################
diff --git a/tests/v3/compatibility_suite/test_v3_http_matching.py b/tests/v3/compatibility_suite/test_v3_http_matching.py
index c7116bd8a..92b0118be 100644
--- a/tests/v3/compatibility_suite/test_v3_http_matching.py
+++ b/tests/v3/compatibility_suite/test_v3_http_matching.py
@@ -3,8 +3,8 @@
 import pickle
 import re
 import sys
+from collections.abc import Generator
 from pathlib import Path
-from typing import Generator
 
 import pytest
 from pytest_bdd import (
diff --git a/tests/v3/compatibility_suite/test_v3_message_consumer.py b/tests/v3/compatibility_suite/test_v3_message_consumer.py
index aeab8958e..fb39a3c9e 100644
--- a/tests/v3/compatibility_suite/test_v3_message_consumer.py
+++ b/tests/v3/compatibility_suite/test_v3_message_consumer.py
@@ -6,7 +6,7 @@
 import json
 import logging
 import re
-from typing import TYPE_CHECKING, Any, List, NamedTuple
+from typing import TYPE_CHECKING, Any, NamedTuple
 
 from pytest_bdd import (
     given,
@@ -47,9 +47,9 @@ class ReceivedMessage(NamedTuple):
 class PactResult(NamedTuple):
     """Holder class for Pact Result objects."""
 
-    messages: List[ReceivedMessage]
+    messages: list[ReceivedMessage]
     pact_data: dict[str, Any] | None
-    errors: List[InteractionVerificationError]
+    errors: list[InteractionVerificationError]
 
 
 def assert_type(expected_type: str, value: Any) -> None:  # noqa: ANN401
diff --git a/tests/v3/compatibility_suite/test_v3_message_producer.py b/tests/v3/compatibility_suite/test_v3_message_producer.py
index b4eab3ee5..e8087a4dc 100644
--- a/tests/v3/compatibility_suite/test_v3_message_producer.py
+++ b/tests/v3/compatibility_suite/test_v3_message_producer.py
@@ -8,7 +8,7 @@
 import re
 import sys
 from pathlib import Path
-from typing import TYPE_CHECKING, Generator
+from typing import TYPE_CHECKING
 
 import pytest
 from pytest_bdd import (
@@ -40,6 +40,8 @@
 )
 
 if TYPE_CHECKING:
+    from collections.abc import Generator
+
     from yarl import URL
 
     from pact.v3.verifier import Verifier
diff --git a/tests/v3/compatibility_suite/test_v4_consumer.py b/tests/v3/compatibility_suite/test_v4_consumer.py
index c6e00aef0..9af176a56 100644
--- a/tests/v3/compatibility_suite/test_v4_consumer.py
+++ b/tests/v3/compatibility_suite/test_v4_consumer.py
@@ -4,7 +4,7 @@
 
 import json
 import logging
-from typing import Any, Generator
+from typing import TYPE_CHECKING, Any
 
 from pytest_bdd import given, parsers, scenario, then
 
@@ -14,6 +14,9 @@
     the_pact_file_for_the_test_is_generated,
 )
 
+if TYPE_CHECKING:
+    from collections.abc import Generator
+
 logger = logging.getLogger(__name__)
 
 ################################################################################
diff --git a/tests/v3/test_http_interaction.py b/tests/v3/test_http_interaction.py
index a6f170c38..77d181935 100644
--- a/tests/v3/test_http_interaction.py
+++ b/tests/v3/test_http_interaction.py
@@ -201,11 +201,14 @@ async def test_set_header_request_repeat(
         .will_respond_with(200)
     )
     with pact.serve(raises=False) as srv:
-        async with aiohttp.ClientSession(srv.url) as session, session.request(
-            "GET",
-            "/",
-            headers=headers,
-        ) as resp:
+        async with (
+            aiohttp.ClientSession(srv.url) as session,
+            session.request(
+                "GET",
+                "/",
+                headers=headers,
+            ) as resp,
+        ):
             assert resp.status == 500
 
         assert len(srv.mismatches) == 1
@@ -537,10 +540,13 @@ async def test_multipart_file_request(pact: Pact, temp_dir: Path) -> None:
             {"Content-Type": "image/png"},  # type: ignore[arg-type]
         )
 
-        async with aiohttp.ClientSession(srv.url) as session, session.post(
-            "/",
-            data=mpwriter,
-        ) as resp:
+        async with (
+            aiohttp.ClientSession(srv.url) as session,
+            session.post(
+                "/",
+                data=mpwriter,
+            ) as resp,
+        ):
             assert resp.status == 200
             assert await resp.read() == b""
 
@@ -583,9 +589,10 @@ async def test_pact_server_verbose(
         .with_request("GET", "/foo")
         .will_respond_with(200)
     )
-    with caplog.at_level(logging.WARNING, logger="pact.v3.pact"), pact.serve(
-        raises=False, verbose=True
-    ) as srv:
+    with (
+        caplog.at_level(logging.WARNING, logger="pact.v3.pact"),
+        pact.serve(raises=False, verbose=True) as srv,
+    ):
         async with aiohttp.ClientSession(srv.url) as session:
             async with session.get("/bar") as resp:
                 assert resp.status == 500