diff --git a/src/promptflow/tests/executor/unittests/processpool/test_healthy_ensured_process.py b/src/promptflow/tests/executor/unittests/processpool/test_healthy_ensured_process.py
index 498f1bbf7db..42fe462c060 100644
--- a/src/promptflow/tests/executor/unittests/processpool/test_healthy_ensured_process.py
+++ b/src/promptflow/tests/executor/unittests/processpool/test_healthy_ensured_process.py
@@ -27,7 +27,7 @@ def end_process(healthy_ensured_process):
 class TestHealthyEnsuredProcess:
 
     def test_healthy_ensured_process(self):
-        context = get_multiprocessing_context("fork")
+        context = get_multiprocessing_context("spawn")
         healthy_ensured_process = HealthyEnsuredProcess(executor_creation_func, context)
         assert healthy_ensured_process.is_ready is False
         task_queue = Queue()
@@ -38,7 +38,7 @@ def test_healthy_ensured_process(self):
         assert healthy_ensured_process.process.is_alive() is False
 
     def test_unhealthy_process(self):
-        context = get_multiprocessing_context("fork")
+        context = get_multiprocessing_context("spawn")
         healthy_ensured_process = HealthyEnsuredProcess(executor_creation_func_timeout, context)
         assert healthy_ensured_process.is_ready is False
         task_queue = Queue()
@@ -49,7 +49,7 @@ def test_unhealthy_process(self):
         assert healthy_ensured_process.process.is_alive() is False
 
     def test_format_current_process(self):
-        context = get_multiprocessing_context("fork")
+        context = get_multiprocessing_context("spawn")
         healthy_ensured_process = HealthyEnsuredProcess(executor_creation_func, context)
         healthy_ensured_process.process = patch(
             'promptflow.executor._line_execution_process_pool.Process', autospec=True)
@@ -66,7 +66,7 @@ def test_format_current_process(self):
 
     @patch('promptflow.executor._line_execution_process_pool.logger.info', autospec=True)
     def test_format_completed_process(self, mock_logger_info):
-        context = get_multiprocessing_context("fork")
+        context = get_multiprocessing_context("spawn")
         healthy_ensured_process = HealthyEnsuredProcess(executor_creation_func, context)
         healthy_ensured_process.process = patch(
             'promptflow.executor._line_execution_process_pool.Process', autospec=True)