diff --git a/homeassistant/components/nina/quality_scale.yaml b/homeassistant/components/nina/quality_scale.yaml
index 797e101c15a..85f213d9e1a 100644
--- a/homeassistant/components/nina/quality_scale.yaml
+++ b/homeassistant/components/nina/quality_scale.yaml
@@ -47,7 +47,6 @@ rules:
   test-coverage:
     status: todo
     comment: |
-      Use load_json_object_fixture in tests
       Patch the library instead of the HTTP requests
       Create a shared fixture for the mock config entry
       Use init_integration in tests
diff --git a/tests/components/nina/__init__.py b/tests/components/nina/__init__.py
index 29e3bdfea08..539811e7f40 100644
--- a/tests/components/nina/__init__.py
+++ b/tests/components/nina/__init__.py
@@ -1,13 +1,17 @@
 """Tests for the Nina integration."""
 
-import json
 from typing import Any
 from unittest.mock import patch
 
+from homeassistant.components.nina.const import DOMAIN
 from homeassistant.config_entries import ConfigEntryState
 from homeassistant.core import HomeAssistant
 
-from tests.common import MockConfigEntry, load_fixture
+from tests.common import (
+    MockConfigEntry,
+    load_json_array_fixture,
+    load_json_object_fixture,
+)
 
 
 async def setup_platform(hass: HomeAssistant, config_entry: MockConfigEntry) -> None:
@@ -24,20 +28,20 @@ async def setup_platform(hass: HomeAssistant, config_entry: MockConfigEntry) ->
 
 def mocked_request_function(url: str) -> dict[str, Any]:
     """Mock of the request function."""
-    dummy_response: dict[str, Any] = json.loads(
-        load_fixture("sample_warnings.json", "nina")
+    dummy_response: list[dict[str, Any]] = load_json_array_fixture(
+        "sample_warnings.json", DOMAIN
     )
 
-    dummy_response_details: dict[str, Any] = json.loads(
-        load_fixture("sample_warning_details.json", "nina")
+    dummy_response_details: dict[str, Any] = load_json_object_fixture(
+        "sample_warning_details.json", DOMAIN
     )
 
-    dummy_response_regions: dict[str, Any] = json.loads(
-        load_fixture("sample_regions.json", "nina")
+    dummy_response_regions: dict[str, Any] = load_json_object_fixture(
+        "sample_regions.json", DOMAIN
     )
 
-    dummy_response_labels: dict[str, Any] = json.loads(
-        load_fixture("sample_labels.json", "nina")
+    dummy_response_labels: dict[str, Any] = load_json_object_fixture(
+        "sample_labels.json", DOMAIN
     )
 
     if "https://warnung.bund.de/api31/dashboard/" in url:  # codespell:ignore bund