diff --git a/account_move_line_purchase_info/tests/test_account_move_line_purchase_info.py b/account_move_line_purchase_info/tests/test_account_move_line_purchase_info.py
index de0b61a9d..976ce07bf 100644
--- a/account_move_line_purchase_info/tests/test_account_move_line_purchase_info.py
+++ b/account_move_line_purchase_info/tests/test_account_move_line_purchase_info.py
@@ -197,7 +197,7 @@ class TestAccountMoveLinePurchaseInfo(common.TransactionCase):
         f.partner_id = purchase.partner_id
         f.purchase_id = purchase
         invoice = f.save()
-        invoice.action_post()
+        invoice._post()
         purchase.flush()
 
         for aml in invoice.invoice_line_ids:
diff --git a/account_move_line_sale_info/tests/test_account_move_line_sale_info.py b/account_move_line_sale_info/tests/test_account_move_line_sale_info.py
index f5df5d89d..000310c51 100644
--- a/account_move_line_sale_info/tests/test_account_move_line_sale_info.py
+++ b/account_move_line_sale_info/tests/test_account_move_line_sale_info.py
@@ -203,7 +203,7 @@ class TestAccountMoveLineSaleInfo(common.TransactionCase):
         )
         payment.create_invoices()
         invoice = sale.invoice_ids[0]
-        invoice.post()
+        invoice._post()
 
         for aml in invoice.line_ids:
             if aml.product_id == so_line.product_id and aml.move_id: