diff --git a/dnastack/client/workbench/workflow/client.py b/dnastack/client/workbench/workflow/client.py
index 2e405223..cb53c713 100644
--- a/dnastack/client/workbench/workflow/client.py
+++ b/dnastack/client/workbench/workflow/client.py
@@ -17,7 +17,7 @@
 from dnastack.common.tracing import Span
 from dnastack.http.session import JsonPatch, HttpSession, ClientError
 
-_GLOBAL_NAMESPACE_HEADERS = {'X-Global-Namespace': 'true', 'X-Admin-Only-Action': 'true'}
+_GLOBAL_NAMESPACE_HEADERS = {'X-Global-Namespace': 'true'}
 
 
 class WorkflowDefaultsListResultLoader(WorkbenchResultLoader):
diff --git a/tests/unit/client/workbench/workflow/test_workflow_client_admin_header.py b/tests/unit/client/workbench/workflow/test_workflow_client_admin_header.py
index 459ad8ba..670e0903 100644
--- a/tests/unit/client/workbench/workflow/test_workflow_client_admin_header.py
+++ b/tests/unit/client/workbench/workflow/test_workflow_client_admin_header.py
@@ -66,12 +66,10 @@ class TestAdminOnlyActionHeader:
     def _assert_header_present(self, call_kwargs):
         headers = call_kwargs.get('headers', {})
         assert headers.get('X-Global-Namespace') == 'true', f"Expected X-Global-Namespace=true, got: {headers}"
-        assert headers.get('X-Admin-Only-Action') == 'true', f"Expected X-Admin-Only-Action=true, got: {headers}"
 
     def _assert_header_absent(self, call_kwargs):
         headers = call_kwargs.get('headers', {})
         assert 'X-Global-Namespace' not in headers, f"Unexpected X-Global-Namespace header in: {headers}"
-        assert 'X-Admin-Only-Action' not in headers, f"Unexpected X-Admin-Only-Action header in: {headers}"
 
     def test_create_workflow_sends_admin_header(self):
         client = _create_workflow_client()