diff --git a/tests/test_litellm/llms/watsonx/test_watsonx.py b/tests/test_litellm/llms/watsonx/test_watsonx.py
index 1ab21ac6dc8..4360a154cfa 100644
--- a/tests/test_litellm/llms/watsonx/test_watsonx.py
+++ b/tests/test_litellm/llms/watsonx/test_watsonx.py
@@ -208,6 +208,7 @@ def test_watsonx_completion_regular_model_includes_model_id(
 
 
 @pytest.mark.asyncio
+@pytest.mark.xdist_group("watsonx_heavy")
 async def test_watsonx_gpt_oss_prompt_transformation(monkeypatch):
     """
     Test that gpt-oss-120b model transforms messages to proper format instead of simple concatenation.
@@ -391,6 +392,7 @@ async def test_watsonx_gpt_oss_prompt_transformation(monkeypatch):
 
 
 @pytest.mark.asyncio
+@pytest.mark.xdist_group("watsonx_heavy")
 async def test_watsonx_gpt_oss_uses_async_http_handler():
     """
     Test that verifies async HTTP client is used when fetching HuggingFace templates.
diff --git a/tests/test_litellm/proxy/health_endpoints/test_health_endpoints.py b/tests/test_litellm/proxy/health_endpoints/test_health_endpoints.py
index cc6302644a7..0e108ea5817 100644
--- a/tests/test_litellm/proxy/health_endpoints/test_health_endpoints.py
+++ b/tests/test_litellm/proxy/health_endpoints/test_health_endpoints.py
@@ -374,6 +374,7 @@ def proxy_client(monkeypatch):
         yield client
 
 
+@pytest.mark.xdist_group("proxy_health")
 def test_health_liveliness_endpoint(proxy_client):
     """
     Test that /health/liveliness endpoint returns 200 OK with "I'm alive!" message.