diff --git a/tests/conftest.py b/tests/conftest.py
index f619cba..a47bb67 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -22,7 +22,7 @@ def get_api_data(fixture: str) -> dict:
     return json.loads(load_fixture(fixture))
 
 
-async def patched(url: str, params: dict | None = None) -> bytes:
+async def patched(url: str, _params: dict | None = None) -> bytes:
     if "cdn.knmi.nl" in url:
         file_name = "tests/fixtures/clouds_nl.png"
     elif "app.meteo.be/services/appv4/?s=getIncaImage" in url:
diff --git a/tests/test_coordinator.py b/tests/test_coordinator.py
index afc32e3..a41948a 100644
--- a/tests/test_coordinator.py
+++ b/tests/test_coordinator.py
@@ -142,9 +142,9 @@ async def test_hourly_forecast() -> None:
 
 
 @freeze_time(datetime.fromisoformat('2024-05-31T01:50:00+02:00'))
-def test_hourly_forecast_bis() -> None:
+async def test_hourly_forecast_bis() -> None:
     api_data = get_api_data("no-midnight-bug-31-05-2024T01-55.json").get('for', {}).get('hourly')
-    result = IrmKmiCoordinator.hourly_list_to_forecast(api_data)
+    result = await IrmKmiCoordinator.hourly_list_to_forecast(api_data)
 
     assert isinstance(result, list)
 
@@ -158,10 +158,10 @@ def test_hourly_forecast_bis() -> None:
 
 
 @freeze_time(datetime.fromisoformat('2024-05-31T00:10:00+02:00'))
-def test_hourly_forecast_midnight_bug() -> None:
+async def test_hourly_forecast_midnight_bug() -> None:
     # Related to https://github.com/jdejaegh/irm-kmi-ha/issues/38
     api_data = get_api_data("midnight-bug-31-05-2024T00-13.json").get('for', {}).get('hourly')
-    result = IrmKmiCoordinator.hourly_list_to_forecast(api_data)
+    result = await IrmKmiCoordinator.hourly_list_to_forecast(api_data)
 
     assert isinstance(result, list)