diff --git a/src/stores/tickets.ts b/src/stores/tickets.ts
index 0e110e4..9b9e558 100644
--- a/src/stores/tickets.ts
+++ b/src/stores/tickets.ts
@@ -18,16 +18,11 @@ export const useTicketStore = create<TicketStore>()(
     )
 );
 
-export const setTickets = (tickets: Ticket[]) => useTicketStore.setState(({ tickets }));
-
-export const addOrUpdateTicket = (updatedTicket: Ticket) => {
+export const updateTickets = (receivedTickets: Ticket[]) => {
     const state = useTicketStore.getState();
-    const ticketIndex = state.tickets.findIndex(ticket => ticket.id === updatedTicket.id);
+    const ticketIdToTicketMap: { [ticketId: string]: Ticket; } = {};
 
-    if (ticketIndex === -1) {
-        return useTicketStore.setState({ tickets: [...state.tickets, updatedTicket] });
-    }
+    [...state.tickets, ...receivedTickets].forEach(ticket => ticketIdToTicketMap[ticket.id] = ticket);
 
-    const newTickets = state.tickets.slice().splice(ticketIndex, 1, updatedTicket);
-    useTicketStore.setState({ tickets: newTickets });
+    useTicketStore.setState({ tickets: Object.values(ticketIdToTicketMap) });
 };
\ No newline at end of file