diff --git a/tests/conftest.py b/tests/conftest.py
index 7ebff10..2ce67d6 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -103,22 +103,24 @@ def mock_db_path(temp_db_path):
 @pytest.fixture
 def sample_bank_data():
     """Sample bank/institution data for testing."""
-    return [
-        {
-            "id": "REVOLUT_REVOLT21",
-            "name": "Revolut",
-            "bic": "REVOLT21",
-            "transaction_total_days": 90,
-            "countries": ["GB", "LT"],
-        },
-        {
-            "id": "BANCOBPI_BBPIPTPL",
-            "name": "Banco BPI",
-            "bic": "BBPIPTPL",
-            "transaction_total_days": 90,
-            "countries": ["PT"],
-        },
-    ]
+    return {
+        "results": [
+            {
+                "id": "REVOLUT_REVOLT21",
+                "name": "Revolut",
+                "bic": "REVOLT21",
+                "transaction_total_days": 90,
+                "countries": ["GB", "LT"],
+            },
+            {
+                "id": "BANCOBPI_BBPIPTPL",
+                "name": "Banco BPI",
+                "bic": "BBPIPTPL",
+                "transaction_total_days": 90,
+                "countries": ["PT"],
+            },
+        ]
+    }
 
 
 @pytest.fixture
diff --git a/tests/unit/test_api_banks.py b/tests/unit/test_api_banks.py
index f3f97cd..1e08456 100644
--- a/tests/unit/test_api_banks.py
+++ b/tests/unit/test_api_banks.py
@@ -50,7 +50,7 @@ class TestBanksAPI:
 
         # Mock empty institutions response for invalid country
         respx.get("https://bankaccountdata.gocardless.com/api/v2/institutions/").mock(
-            return_value=httpx.Response(200, json=[])
+            return_value=httpx.Response(200, json={"results": []})
         )
 
         with patch("leggen.utils.config.config", mock_config):
diff --git a/tests/unit/test_api_client.py b/tests/unit/test_api_client.py
index ce61d40..8a36689 100644
--- a/tests/unit/test_api_client.py
+++ b/tests/unit/test_api_client.py
@@ -37,9 +37,12 @@ class TestLeggenAPIClient:
         """Test getting institutions via API client."""
         client = LeggenAPIClient("http://localhost:8000")
 
+        # The API returns processed institutions, not raw GoCardless data
+        processed_institutions = sample_bank_data["results"]
+
         api_response = {
             "success": True,
-            "data": sample_bank_data,
+            "data": processed_institutions,
             "message": "Found 2 institutions for PT",
         }