diff --git a/agent_reviewer/builder.py b/agent_reviewer/builder.py
index 110c3b4..fcc22ad 100644
--- a/agent_reviewer/builder.py
+++ b/agent_reviewer/builder.py
@@ -144,7 +144,6 @@ def build_reviewer_graph(
     return create_a2a_deep_agent(
         ctx,
         creds=llm_creds,
-        default_temperature=0.0,
         tools=tools,
         system_prompt=SYSTEM_PROMPT,
         backend=backend,
diff --git a/tests/test_agent.py b/tests/test_agent.py
index 7ad9c84..edf3925 100644
--- a/tests/test_agent.py
+++ b/tests/test_agent.py
@@ -84,9 +84,8 @@ def test_reviewer_graph_uses_forwarded_llm_credentials(
 ) -> None:
     captured: dict = {}
 
-    def fake_create_a2a_deep_agent(ctx, *, creds, default_temperature=None, **kwargs) -> dict[str, object]:
+    def fake_create_a2a_deep_agent(ctx, *, creds, **kwargs) -> dict[str, object]:
         captured["creds"] = creds
-        captured["default_temperature"] = default_temperature
         captured["graph_kwargs"] = kwargs
         return kwargs
 
@@ -114,7 +113,6 @@ def test_reviewer_graph_uses_forwarded_llm_credentials(
     assert getattr(creds, "api_key") == "scoped-grant-token"
     assert getattr(creds, "temperature_mode") == "omit"
     assert getattr(creds, "extra_body") == {"extra_body": {"thinking": {"type": "disabled"}}}
-    assert captured["default_temperature"] == 0.0
 
 
 def test_reviewer_graph_rejects_missing_forwarded_llm_credentials(