diff --git a/src/renault_api/gigya/__init__.py b/src/renault_api/gigya/__init__.py
index e08eb586..fb2db201 100644
--- a/src/renault_api/gigya/__init__.py
+++ b/src/renault_api/gigya/__init__.py
@@ -1,5 +1,6 @@
 """Gigya API."""
 import logging
+from json import JSONDecodeError
 from typing import Any
 from typing import cast
 from typing import Dict
@@ -9,6 +10,7 @@
 
 from . import models
 from . import schemas
+from .exceptions import GigyaException
 
 GIGYA_JWT = "gigya_jwt"
 GIGYA_LOGIN_TOKEN = "gigya_login_token"  # noqa: S105
@@ -35,7 +37,10 @@ async def request(
         #    url,
         #    response_text,
         # )
-        gigya_response: models.GigyaResponse = schema.loads(response_text)
+        try:
+            gigya_response: models.GigyaResponse = schema.loads(response_text)
+        except JSONDecodeError as err:
+            raise GigyaException("Gigya responded with invalid JSON") from err
         # Check for Gigya error
         gigya_response.raise_for_error_code()
         # Check for HTTP error
diff --git a/tests/fixtures.py b/tests/fixtures.py
index 0fa0b4d4..f32a931b 100644
--- a/tests/fixtures.py
+++ b/tests/fixtures.py
@@ -5,14 +5,6 @@
 import json
 from glob import glob
 from os import path
-from typing import Any
-from typing import List
-from typing import Mapping
-from typing import Optional
-
-import jwt
-from aioresponses import aioresponses
-from marshmallow.schema import Schema
 from tests.const import REDACTED
 from tests.const import TEST_ACCOUNT_ID
 from tests.const import TEST_COUNTRY
@@ -21,6 +13,14 @@
 from tests.const import TEST_PERSON_ID
 from tests.const import TEST_VIN
 from tests.const import TO_REDACT
+from typing import Any
+from typing import List
+from typing import Mapping
+from typing import Optional
+
+import jwt
+from aioresponses import aioresponses
+from marshmallow.schema import Schema
 
 GIGYA_FIXTURE_PATH = "tests/fixtures/gigya"
 KAMEREON_FIXTURE_PATH = "tests/fixtures/kamereon"
@@ -111,6 +111,15 @@ def inject_gigya_login(mocked_responses: aioresponses) -> str:
     )
 
 
+def inject_gigya_login_invalid(mocked_responses: aioresponses) -> str:
+    """Inject Gigya login data."""
+    return inject_gigya(
+        mocked_responses,
+        "accounts.login",
+        "login_invalid.txt",
+    )
+
+
 def inject_gigya_account_info(mocked_responses: aioresponses) -> str:
     """Inject Gigya getAccountInfo data."""
     return inject_gigya(
diff --git a/tests/fixtures/gigya/login_invalid.txt b/tests/fixtures/gigya/login_invalid.txt
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/gigya/test_gigya.py b/tests/gigya/test_gigya.py
index ba7725bb..0fc2f126 100644
--- a/tests/gigya/test_gigya.py
+++ b/tests/gigya/test_gigya.py
@@ -1,7 +1,4 @@
 """Tests for Gigya API."""
-import aiohttp
-import pytest
-from aioresponses import aioresponses
 from tests import fixtures
 from tests.const import TEST_GIGYA_APIKEY
 from tests.const import TEST_GIGYA_URL
@@ -10,6 +7,10 @@
 from tests.const import TEST_PERSON_ID
 from tests.const import TEST_USERNAME
 
+import aiohttp
+import pytest
+from aioresponses import aioresponses
+
 from renault_api import gigya
 
 
@@ -30,6 +31,23 @@ async def test_login(
     assert response.get_session_cookie() == TEST_LOGIN_TOKEN
 
 
+@pytest.mark.asyncio
+async def test_login_error(
+    websession: aiohttp.ClientSession, mocked_responses: aioresponses
+) -> None:
+    """Test login response."""
+    fixtures.inject_gigya_login_invalid(mocked_responses)
+
+    with pytest.raises(gigya.exceptions.GigyaException):
+        await gigya.login(
+            websession,
+            TEST_GIGYA_URL,
+            TEST_GIGYA_APIKEY,
+            TEST_USERNAME,
+            TEST_PASSWORD,
+        )
+
+
 @pytest.mark.asyncio
 async def test_person_id(
     websession: aiohttp.ClientSession, mocked_responses: aioresponses