diff --git a/src/aws_durable_execution_sdk_python/lambda_service.py b/src/aws_durable_execution_sdk_python/lambda_service.py
index 44ce6f6..d3b68c7 100644
--- a/src/aws_durable_execution_sdk_python/lambda_service.py
+++ b/src/aws_durable_execution_sdk_python/lambda_service.py
@@ -883,10 +883,6 @@ def get_execution_state(
         max_items: int = 1000,
     ) -> StateOutput: ...  # pragma: no cover
 
-    def stop(
-        self, execution_arn: str, payload: bytes | None
-    ) -> datetime.datetime: ...  # pragma: no cover
-
 
 class LambdaClient(DurableServiceClient):
     """Persist durable operations to the Lambda Durable Function APIs."""
@@ -984,13 +980,5 @@ def get_execution_state(
         )
         return StateOutput.from_dict(result)
 
-    def stop(self, execution_arn: str, payload: bytes | None) -> datetime.datetime:
-        result: MutableMapping[str, Any] = self.client.stop_durable_execution(
-            ExecutionArn=execution_arn, Payload=payload
-        )
-
-        # presumably lambda throws if execution_arn not found? this line will throw if stopDate isn't in response
-        return result["StopDate"]
-
 
 # endregion client
diff --git a/tests/lambda_service_test.py b/tests/lambda_service_test.py
index 47d39ae..f7a8bac 100644
--- a/tests/lambda_service_test.py
+++ b/tests/lambda_service_test.py
@@ -1897,22 +1897,6 @@ def test_lambda_client_get_execution_state():
     assert len(result.operations) == 1
 
 
-def test_lambda_client_stop():
-    """Test LambdaClient.stop method."""
-    mock_client = Mock()
-    mock_client.stop_durable_execution.return_value = {
-        "StopDate": "2023-01-01T00:00:00Z"
-    }
-
-    lambda_client = LambdaClient(mock_client)
-    result = lambda_client.stop("arn:test", b"payload")
-
-    mock_client.stop_durable_execution.assert_called_once_with(
-        ExecutionArn="arn:test", Payload=b"payload"
-    )
-    assert result == "2023-01-01T00:00:00Z"
-
-
 def test_durable_service_client_protocol_get_execution_state():
     """Test DurableServiceClient protocol get_execution_state method signature."""
     mock_client = Mock(spec=DurableServiceClient)
@@ -1927,18 +1911,6 @@ def test_durable_service_client_protocol_get_execution_state():
     assert result == mock_output
 
 
-def test_durable_service_client_protocol_stop():
-    """Test DurableServiceClient protocol stop method signature."""
-    mock_client = Mock(spec=DurableServiceClient)
-    stop_time = datetime.datetime(2023, 1, 1, 12, 0, 0, tzinfo=datetime.UTC)
-    mock_client.stop.return_value = stop_time
-
-    result = mock_client.stop("arn:test", b"payload")
-
-    mock_client.stop.assert_called_once_with("arn:test", b"payload")
-    assert result == stop_time
-
-
 @patch("aws_durable_execution_sdk_python.lambda_service.boto3")
 def test_lambda_client_initialize_local_runner_client_defaults(mock_boto3):
     """Test LambdaClient.initialize_local_runner_client with default environment values."""