diff --git a/plugins/flytekit-openai/flytekitplugins/openai/batch/task.py b/plugins/flytekit-openai/flytekitplugins/openai/batch/task.py
index f5054582dd..695e8882e6 100644
--- a/plugins/flytekit-openai/flytekitplugins/openai/batch/task.py
+++ b/plugins/flytekit-openai/flytekitplugins/openai/batch/task.py
@@ -33,7 +33,7 @@ def __init__(
         self,
         name: str,
         openai_organization: str,
-        config: Dict[str, Any] = {},
+        config: Dict[str, Any],
         **kwargs,
     ):
         super().__init__(
diff --git a/plugins/flytekit-openai/flytekitplugins/openai/batch/workflow.py b/plugins/flytekit-openai/flytekitplugins/openai/batch/workflow.py
index 1f0ff30b51..209bd0d981 100644
--- a/plugins/flytekit-openai/flytekitplugins/openai/batch/workflow.py
+++ b/plugins/flytekit-openai/flytekitplugins/openai/batch/workflow.py
@@ -1,4 +1,4 @@
-from typing import Any, Dict, Iterator
+from typing import Any, Dict, Iterator, Optional
 
 from flytekit import Resources, Workflow
 from flytekit.models.security import Secret
@@ -18,7 +18,7 @@ def create_batch(
     name: str,
     openai_organization: str,
     secret: Secret,
-    config: Dict[str, Any] = {},
+    config: Optional[Dict[str, Any]] = None,
     is_json_iterator: bool = True,
     file_upload_mem: str = "700Mi",
     file_download_mem: str = "700Mi",
@@ -45,6 +45,8 @@ def create_batch(
         name=f"openai-file-upload-{name.replace('.', '')}",
         task_config=OpenAIFileConfig(openai_organization=openai_organization, secret=secret),
     )
+    if config is None:
+        config = {}
     batch_endpoint_task_obj = BatchEndpointTask(
         name=f"openai-batch-{name.replace('.', '')}",
         openai_organization=openai_organization,