diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index c7180b8f..905aca71 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -22,7 +22,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v5
         with:
-          version: "0.4.11"
+          version: "latest"
           enable-cache: true
       - run: uv python install 3.12
       - run: uv sync --extra dev
diff --git a/.github/workflows/publish-docs.yaml b/.github/workflows/publish-docs.yaml
index aa0451d7..24603d37 100644
--- a/.github/workflows/publish-docs.yaml
+++ b/.github/workflows/publish-docs.yaml
@@ -20,7 +20,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v5
         with:
-          version: "0.4.11"
+          version: "latest"
           enable-cache: true
       - run: uv python install 3.12
       - run: uv sync --extra dev
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 3a1657a1..653d6862 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -24,7 +24,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v5
         with:
-          version: "0.4.11"
+          version: "latest"
           enable-cache: true
       - run: uv python install 3.12
       - run: uv sync --all-extras
diff --git a/src/speaches/hf_utils.py b/src/speaches/hf_utils.py
index 9707e565..25e1e7c6 100644
--- a/src/speaches/hf_utils.py
+++ b/src/speaches/hf_utils.py
@@ -226,13 +226,14 @@ def get_kokoro_model_path() -> Path:
 def download_kokoro_model() -> None:
     model_id = "hexgrad/Kokoro-82M"
     model_repo_path = Path(
-        huggingface_hub.snapshot_download(model_id, repo_type="model", allow_patterns="**/kokoro-v0_19.onnx")
+        huggingface_hub.snapshot_download(model_id, repo_type="model", allow_patterns=["kokoro-v0_19.onnx"])
     )
     # HACK
     res = httpx.get(
         "https://github.com/thewh1teagle/kokoro-onnx/releases/download/model-files/voices.json", follow_redirects=True
     ).raise_for_status()
     voices_path = model_repo_path / "voices.json"
+    voices_path.touch(exist_ok=True)
     voices_path.write_bytes(res.content)
 
 
diff --git a/tests/conftest.py b/tests/conftest.py
index eef210de..1bee9bb5 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -5,8 +5,8 @@
 from typing import Protocol
 
 from fastapi.testclient import TestClient
+import httpx
 from httpx import ASGITransport, AsyncClient
-from huggingface_hub import snapshot_download
 from openai import AsyncOpenAI
 import pytest
 import pytest_asyncio
@@ -14,6 +14,7 @@
 
 from speaches.config import Config, WhisperConfig
 from speaches.dependencies import get_config
+from speaches.hf_utils import download_kokoro_model
 from speaches.main import create_app
 
 DISABLE_LOGGERS = ["multipart.multipart", "faster_whisper"]
@@ -26,6 +27,7 @@
     # disable the UI as it slightly increases the app startup time due to the imports it's doing
     enable_ui=False,
 )
+TIMEOUT = httpx.Timeout(15.0)
 
 
 def pytest_configure() -> None:
@@ -64,7 +66,7 @@ async def inner(config: Config = DEFAULT_CONFIG) -> AsyncGenerator[AsyncClient,
         app = create_app()
         # https://fastapi.tiangolo.com/advanced/testing-dependencies/
         app.dependency_overrides[get_config] = lambda: config
-        async with AsyncClient(transport=ASGITransport(app=app), base_url="http://test") as aclient:
+        async with AsyncClient(transport=ASGITransport(app=app), base_url="http://test", timeout=TIMEOUT) as aclient:
             yield aclient
 
     return inner
@@ -91,7 +93,12 @@ def actual_openai_client() -> AsyncOpenAI:
 
 # TODO: remove the download after running the tests
 # TODO: do not download when not needed
+# @pytest.fixture(scope="session", autouse=True)
+# def download_piper_voices() -> None:
+#     # Only download `voices.json` and the default voice
+#     snapshot_download("rhasspy/piper-voices", allow_patterns=["voices.json", "en/en_US/amy/**"])
+
+
 @pytest.fixture(scope="session", autouse=True)
-def download_piper_voices() -> None:
-    # Only download `voices.json` and the default voice
-    snapshot_download("rhasspy/piper-voices", allow_patterns=["voices.json", "en/en_US/amy/**"])
+def download_kokoro() -> None:
+    download_kokoro_model()
diff --git a/tests/speech_test.py b/tests/speech_test.py
index 6e2d7c0e..047b7991 100644
--- a/tests/speech_test.py
+++ b/tests/speech_test.py
@@ -21,7 +21,6 @@
 
 
 @pytest.mark.asyncio
-@pytest.mark.skipif(platform_machine != "x86_64", reason="Only supported on x86_64")
 @pytest.mark.parametrize("response_format", SUPPORTED_RESPONSE_FORMATS)
 async def test_create_speech_formats(openai_client: AsyncOpenAI, response_format: ResponseFormat) -> None:
     await openai_client.audio.speech.create(
@@ -42,7 +41,6 @@ async def test_create_speech_formats(openai_client: AsyncOpenAI, response_format
 
 
 @pytest.mark.asyncio
-@pytest.mark.skipif(platform_machine != "x86_64", reason="Only supported on x86_64")
 @pytest.mark.parametrize(("model", "voice"), GOOD_MODEL_VOICE_PAIRS)
 async def test_create_speech_good_model_voice_pair(openai_client: AsyncOpenAI, model: str, voice: str) -> None:
     await openai_client.audio.speech.create(
@@ -63,7 +61,6 @@ async def test_create_speech_good_model_voice_pair(openai_client: AsyncOpenAI, m
 
 
 @pytest.mark.asyncio
-@pytest.mark.skipif(platform_machine != "x86_64", reason="Only supported on x86_64")
 @pytest.mark.parametrize(("model", "voice"), BAD_MODEL_VOICE_PAIRS)
 async def test_create_speech_bad_model_voice_pair(openai_client: AsyncOpenAI, model: str, voice: str) -> None:
     # NOTE: not sure why `APIConnectionError` is sometimes raised
@@ -76,11 +73,10 @@ async def test_create_speech_bad_model_voice_pair(openai_client: AsyncOpenAI, mo
         )
 
 
-SUPPORTED_SPEEDS = [0.25, 0.5, 1.0, 2.0, 4.0]
+SUPPORTED_SPEEDS = [0.5, 1.0, 2.0]
 
 
 @pytest.mark.asyncio
-@pytest.mark.skipif(platform_machine != "x86_64", reason="Only supported on x86_64")
 async def test_create_speech_with_varying_speed(openai_client: AsyncOpenAI) -> None:
     previous_size: int | None = None
     for speed in SUPPORTED_SPEEDS:
@@ -101,7 +97,6 @@ async def test_create_speech_with_varying_speed(openai_client: AsyncOpenAI) -> N
 
 
 @pytest.mark.asyncio
-@pytest.mark.skipif(platform_machine != "x86_64", reason="Only supported on x86_64")
 @pytest.mark.parametrize("speed", UNSUPPORTED_SPEEDS)
 async def test_create_speech_with_unsupported_speed(openai_client: AsyncOpenAI, speed: float) -> None:
     with pytest.raises(UnprocessableEntityError):
@@ -118,7 +113,6 @@ async def test_create_speech_with_unsupported_speed(openai_client: AsyncOpenAI,
 
 
 @pytest.mark.asyncio
-@pytest.mark.skipif(platform_machine != "x86_64", reason="Only supported on x86_64")
 @pytest.mark.parametrize("sample_rate", VALID_SAMPLE_RATES)
 async def test_speech_valid_resample(openai_client: AsyncOpenAI, sample_rate: int) -> None:
     res = await openai_client.audio.speech.create(
@@ -136,7 +130,6 @@ async def test_speech_valid_resample(openai_client: AsyncOpenAI, sample_rate: in
 
 
 @pytest.mark.asyncio
-@pytest.mark.skipif(platform_machine != "x86_64", reason="Only supported on x86_64")
 @pytest.mark.parametrize("sample_rate", INVALID_SAMPLE_RATES)
 async def test_speech_invalid_resample(openai_client: AsyncOpenAI, sample_rate: int) -> None:
     with pytest.raises(UnprocessableEntityError):
@@ -149,6 +142,8 @@ async def test_speech_invalid_resample(openai_client: AsyncOpenAI, sample_rate:
         )
 
 
+# TODO: add piper tests
+
 # TODO: implement the following test
 
 # NUMBER_OF_MODELS = 1