diff --git a/tests/components/conversation/test_init.py b/tests/components/conversation/test_init.py
index 58e94d27aac..61712761250 100644
--- a/tests/components/conversation/test_init.py
+++ b/tests/components/conversation/test_init.py
@@ -733,7 +733,7 @@ async def test_ws_api(
     assert await async_setup_component(hass, "conversation", {})
     client = await hass_ws_client(hass)
 
-    await client.send_json({"id": 5, "type": "conversation/process", **payload})
+    await client.send_json_auto_id({"type": "conversation/process", **payload})
 
     msg = await client.receive_json()
 
@@ -757,18 +757,14 @@ async def test_ws_prepare(
 
     client = await hass_ws_client(hass)
 
-    msg = {
-        "id": 5,
-        "type": "conversation/prepare",
-    }
+    msg = {"type": "conversation/prepare"}
     if agent_id is not None:
         msg["agent_id"] = agent_id
-    await client.send_json(msg)
+    await client.send_json_auto_id(msg)
 
     msg = await client.receive_json()
 
     assert msg["success"]
-    assert msg["id"] == 5
 
     # Intents should now be load
     assert agent._lang_intents.get(hass.config.language)
diff --git a/tests/components/conversation/test_trigger.py b/tests/components/conversation/test_trigger.py
index 26626a04079..74df1b7f8a6 100644
--- a/tests/components/conversation/test_trigger.py
+++ b/tests/components/conversation/test_trigger.py
@@ -105,9 +105,8 @@ async def test_subscribe_trigger_does_not_interfere_with_responses(
 ) -> None:
     """Test that subscribing to a trigger from the websocket API does not interfere with responses."""
     websocket_client = await hass_ws_client()
-    await websocket_client.send_json(
+    await websocket_client.send_json_auto_id(
         {
-            "id": 5,
             "type": "subscribe_trigger",
             "trigger": {"platform": "conversation", "command": ["test sentence"]},
         }