diff --git a/tests/client/test_client.py b/tests/client/test_client.py
index 84283f92..547fbe10 100644
--- a/tests/client/test_client.py
+++ b/tests/client/test_client.py
@@ -165,13 +165,13 @@ async def test_init_strips_slashes(self, mock_httpx_client: AsyncMock):
         resolver = A2ACardResolver(
             httpx_client=mock_httpx_client,
             base_url='http://example.com/',  # With trailing slash
-            agent_card_path='/.well-known/agent.json/',  # With leading/trailing slash
+            agent_card_path='/.well-known/agent-card.json/',  # With leading/trailing slash
         )
         assert (
             resolver.base_url == 'http://example.com'
         )  # Trailing slash stripped
         # constructor lstrips agent_card_path, but keeps trailing if provided
-        assert resolver.agent_card_path == '.well-known/agent.json/'
+        assert resolver.agent_card_path == '.well-known/agent-card.json/'
 
     @pytest.mark.asyncio
     async def test_get_agent_card_success_public_only(
diff --git a/tests/server/apps/jsonrpc/test_serialization.py b/tests/server/apps/jsonrpc/test_serialization.py
index 0b88730a..663de5e0 100644
--- a/tests/server/apps/jsonrpc/test_serialization.py
+++ b/tests/server/apps/jsonrpc/test_serialization.py
@@ -58,7 +58,7 @@ def test_starlette_agent_card_with_api_key_scheme_alias(
     app_instance = A2AStarletteApplication(agent_card_with_api_key, handler)
     client = TestClient(app_instance.build())
 
-    response = client.get('/.well-known/agent.json')
+    response = client.get('/.well-known/agent-card.json')
     assert response.status_code == 200
     response_data = response.json()
 
@@ -90,7 +90,7 @@ def test_fastapi_agent_card_with_api_key_scheme_alias(
     app_instance = A2AFastAPIApplication(agent_card_with_api_key, handler)
     client = TestClient(app_instance.build())
 
-    response = client.get('/.well-known/agent.json')
+    response = client.get('/.well-known/agent-card.json')
     assert response.status_code == 200
     response_data = response.json()