diff --git a/erpnext/stock/doctype/stock_reservation_entry/stock_reservation_entry.py b/erpnext/stock/doctype/stock_reservation_entry/stock_reservation_entry.py
index 71d7dd4e5f3..ca8d49fe8ef 100644
--- a/erpnext/stock/doctype/stock_reservation_entry/stock_reservation_entry.py
+++ b/erpnext/stock/doctype/stock_reservation_entry/stock_reservation_entry.py
@@ -709,6 +709,7 @@ def get_available_qty_to_reserve(
 				& (sre.warehouse == warehouse)
 				& (sre.delivered_qty < sre.reserved_qty)
 			)
+			.for_update()
 		)
 
 		if ignore_sre: