diff --git a/erpnext/buying/doctype/purchase_order/test_purchase_order.py b/erpnext/buying/doctype/purchase_order/test_purchase_order.py
index 6c1bcc7..e0981c6 100644
--- a/erpnext/buying/doctype/purchase_order/test_purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/test_purchase_order.py
@@ -5,7 +5,7 @@
 import json
 
 import frappe
-from frappe.tests.utils import FrappeTestCase
+from frappe.tests.utils import FrappeTestCase, change_settings
 from frappe.utils import add_days, flt, getdate, nowdate
 from frappe.utils.data import today
 
@@ -709,13 +709,10 @@
 		pi.insert()
 		self.assertTrue(pi.get("payment_schedule"))
 
+	@change_settings("Accounts Settings", {"unlink_advance_payment_on_cancelation_of_order": 1})
 	def test_advance_payment_entry_unlink_against_purchase_order(self):
 		from erpnext.accounts.doctype.payment_entry.test_payment_entry import get_payment_entry
 
-		frappe.db.set_value(
-			"Accounts Settings", "Accounts Settings", "unlink_advance_payment_on_cancelation_of_order", 1
-		)
-
 		po_doc = create_purchase_order()
 
 		pe = get_payment_entry("Purchase Order", po_doc.name, bank_account="_Test Bank - _TC")
@@ -735,10 +732,6 @@
 		pe_doc = frappe.get_doc("Payment Entry", pe.name)
 		pe_doc.cancel()
 
-		frappe.db.set_value(
-			"Accounts Settings", "Accounts Settings", "unlink_advance_payment_on_cancelation_of_order", 0
-		)
-
 	def test_schedule_date(self):
 		po = create_purchase_order(do_not_submit=True)
 		po.schedule_date = None