diff --git a/tests/components/iqvia/conftest.py b/tests/components/iqvia/conftest.py
index 6fb14ca4d2812..0d23b825c5a07 100644
--- a/tests/components/iqvia/conftest.py
+++ b/tests/components/iqvia/conftest.py
@@ -1,18 +1,23 @@
 """Define test fixtures for IQVIA."""
 
-import json
+from collections.abc import AsyncGenerator
+from typing import Any
 from unittest.mock import patch
 
 import pytest
 
 from homeassistant.components.iqvia.const import CONF_ZIP_CODE, DOMAIN
+from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
+from homeassistant.util.json import JsonObjectType
 
-from tests.common import MockConfigEntry, load_fixture
+from tests.common import MockConfigEntry, load_json_object_fixture
 
 
 @pytest.fixture(name="config_entry")
-def config_entry_fixture(hass, config):
+def config_entry_fixture(
+    hass: HomeAssistant, config: dict[str, Any]
+) -> MockConfigEntry:
     """Define a config entry fixture."""
     entry = MockConfigEntry(
         domain=DOMAIN,
@@ -25,7 +30,7 @@ def config_entry_fixture(hass, config):
 
 
 @pytest.fixture(name="config")
-def config_fixture(hass):
+def config_fixture() -> dict[str, Any]:
     """Define a config entry data fixture."""
     return {
         CONF_ZIP_CODE: "12345",
@@ -33,59 +38,59 @@ def config_fixture(hass):
 
 
 @pytest.fixture(name="data_allergy_forecast", scope="package")
-def data_allergy_forecast_fixture():
+def data_allergy_forecast_fixture() -> JsonObjectType:
     """Define allergy forecast data."""
-    return json.loads(load_fixture("allergy_forecast_data.json", "iqvia"))
+    return load_json_object_fixture("allergy_forecast_data.json", "iqvia")
 
 
 @pytest.fixture(name="data_allergy_index", scope="package")
-def data_allergy_index_fixture():
+def data_allergy_index_fixture() -> JsonObjectType:
     """Define allergy index data."""
-    return json.loads(load_fixture("allergy_index_data.json", "iqvia"))
+    return load_json_object_fixture("allergy_index_data.json", "iqvia")
 
 
 @pytest.fixture(name="data_allergy_outlook", scope="package")
-def data_allergy_outlook_fixture():
+def data_allergy_outlook_fixture() -> JsonObjectType:
     """Define allergy outlook data."""
-    return json.loads(load_fixture("allergy_outlook_data.json", "iqvia"))
+    return load_json_object_fixture("allergy_outlook_data.json", "iqvia")
 
 
 @pytest.fixture(name="data_asthma_forecast", scope="package")
-def data_asthma_forecast_fixture():
+def data_asthma_forecast_fixture() -> JsonObjectType:
     """Define asthma forecast data."""
-    return json.loads(load_fixture("asthma_forecast_data.json", "iqvia"))
+    return load_json_object_fixture("asthma_forecast_data.json", "iqvia")
 
 
 @pytest.fixture(name="data_asthma_index", scope="package")
-def data_asthma_index_fixture():
+def data_asthma_index_fixture() -> JsonObjectType:
     """Define asthma index data."""
-    return json.loads(load_fixture("asthma_index_data.json", "iqvia"))
+    return load_json_object_fixture("asthma_index_data.json", "iqvia")
 
 
 @pytest.fixture(name="data_disease_forecast", scope="package")
-def data_disease_forecast_fixture():
+def data_disease_forecast_fixture() -> JsonObjectType:
     """Define disease forecast data."""
-    return json.loads(load_fixture("disease_forecast_data.json", "iqvia"))
+    return load_json_object_fixture("disease_forecast_data.json", "iqvia")
 
 
 @pytest.fixture(name="data_disease_index", scope="package")
-def data_disease_index_fixture():
+def data_disease_index_fixture() -> JsonObjectType:
     """Define disease index data."""
-    return json.loads(load_fixture("disease_index_data.json", "iqvia"))
+    return load_json_object_fixture("disease_index_data.json", "iqvia")
 
 
 @pytest.fixture(name="setup_iqvia")
 async def setup_iqvia_fixture(
-    hass,
-    config,
-    data_allergy_forecast,
-    data_allergy_index,
-    data_allergy_outlook,
-    data_asthma_forecast,
-    data_asthma_index,
-    data_disease_forecast,
-    data_disease_index,
-):
+    hass: HomeAssistant,
+    config: dict[str, Any],
+    data_allergy_forecast: JsonObjectType,
+    data_allergy_index: JsonObjectType,
+    data_allergy_outlook: JsonObjectType,
+    data_asthma_forecast: JsonObjectType,
+    data_asthma_index: JsonObjectType,
+    data_disease_forecast: JsonObjectType,
+    data_disease_index: JsonObjectType,
+) -> AsyncGenerator[None]:
     """Define a fixture to set up IQVIA."""
     with (
         patch(
diff --git a/tests/components/iqvia/test_config_flow.py b/tests/components/iqvia/test_config_flow.py
index 17c977a6b4cd4..22f473a3fb5ec 100644
--- a/tests/components/iqvia/test_config_flow.py
+++ b/tests/components/iqvia/test_config_flow.py
@@ -1,12 +1,17 @@
 """Define tests for the IQVIA config flow."""
 
+from typing import Any
+
+import pytest
+
 from homeassistant.components.iqvia import CONF_ZIP_CODE, DOMAIN
 from homeassistant.config_entries import SOURCE_USER
 from homeassistant.core import HomeAssistant
 from homeassistant.data_entry_flow import FlowResultType
 
 
-async def test_duplicate_error(hass: HomeAssistant, config, config_entry) -> None:
+@pytest.mark.usefixtures("config_entry")
+async def test_duplicate_error(hass: HomeAssistant, config: dict[str, Any]) -> None:
     """Test that errors are shown when duplicates are added."""
     result = await hass.config_entries.flow.async_init(
         DOMAIN, context={"source": SOURCE_USER}, data=config
@@ -33,7 +38,8 @@ async def test_show_form(hass: HomeAssistant) -> None:
     assert result["step_id"] == "user"
 
 
-async def test_step_user(hass: HomeAssistant, config, setup_iqvia) -> None:
+@pytest.mark.usefixtures("setup_iqvia")
+async def test_step_user(hass: HomeAssistant, config: dict[str, Any]) -> None:
     """Test that the user step works (without MFA)."""
     result = await hass.config_entries.flow.async_init(
         DOMAIN, context={"source": SOURCE_USER}, data=config
diff --git a/tests/components/iqvia/test_diagnostics.py b/tests/components/iqvia/test_diagnostics.py
index 7c445c9b3e42b..21935a81e86d3 100644
--- a/tests/components/iqvia/test_diagnostics.py
+++ b/tests/components/iqvia/test_diagnostics.py
@@ -4,15 +4,16 @@
 
 from homeassistant.core import HomeAssistant
 
+from tests.common import MockConfigEntry
 from tests.components.diagnostics import get_diagnostics_for_config_entry
 from tests.typing import ClientSessionGenerator
 
 
 async def test_entry_diagnostics(
     hass: HomeAssistant,
-    config_entry,
+    config_entry: MockConfigEntry,
     hass_client: ClientSessionGenerator,
-    setup_iqvia,
+    setup_iqvia: None,  # Needs to be injected after config_entry
     snapshot: SnapshotAssertion,
 ) -> None:
     """Test config entry diagnostics."""