diff --git a/account_move_protect_deleting/models/account_move.py b/account_move_protect_deleting/models/account_move.py
index abd24e9..e2e4545 100644
--- a/account_move_protect_deleting/models/account_move.py
+++ b/account_move_protect_deleting/models/account_move.py
@@ -1,5 +1,6 @@
 from odoo import models, api, _
 from odoo.exceptions import UserError
+import re
 
 class AccountMove(models.Model):
     _inherit = 'account.move'
@@ -7,9 +8,21 @@ class AccountMove(models.Model):
     @api.ondelete(at_uninstall=False)
     def _check_posted(self):
         """ Prevent deletion of a account move if it has been posted
+            exeptions : Check deposit or Cash deposit. In V16 in odoo the account move is deleted
+                        when the check deposit is reset to draft. 
+                        This work the same with Cash deposit
         """
 
-        if (self.posted_before):
+        pattern_CHQ_DEPOSIT = r"DEP\d{3}"
+        pattern_CASH_DEPOSIT = r"CASH-DEP-\d{3}"
+
+        if (
+            self.posted_before and 
+                ( 
+                not re.search(pattern_CHQ_DEPOSIT, self.ref) 
+                and not re.search(pattern_CASH_DEPOSIT, self.ref) 
+                )
+            ):
             raise UserError(_(""
                 "You cannot delete this account move because it has been posted."
             ))