diff --git a/erpnext/selling/doctype/quotation/test_quotation.py b/erpnext/selling/doctype/quotation/test_quotation.py
index aab5fd7..7739e3e 100644
--- a/erpnext/selling/doctype/quotation/test_quotation.py
+++ b/erpnext/selling/doctype/quotation/test_quotation.py
@@ -219,11 +219,8 @@
 		yesterday = getdate(nowdate()) - datetime.timedelta(days=1)
 		expired_quotation = make_quotation(item_list=quotation_item)
 		# Manually set valid till date to bypass validation
-		frappe.db.sql("""
-		UPDATE tabQuotation
-		SET valid_till = %s
-		WHERE name = %s
-		""",(yesterday,expired_quotation.name))
+		expired_quotation.valid_till = yesterday
+		expired_quotation.save()
 		set_expired_status()
 
 		self.assertEqual(expired_quotation.status,"Expired")