diff --git a/app/providers/DialogProvider/dialogQueue.ts b/app/providers/DialogProvider/dialogQueue.ts
index 7256a77..4422f90 100644
--- a/app/providers/DialogProvider/dialogQueue.ts
+++ b/app/providers/DialogProvider/dialogQueue.ts
@@ -1,5 +1,12 @@
 let tail: Promise<void> = Promise.resolve();
 
+/**
+ * Ставит функцию в очередь на выполнение. 
+ * Все функции выполняются последовательно, одна за другой. 
+ * Если функция выбрасывает ошибку, она логируется, 
+ * а выполнение очереди продолжается
+ * @param fn функция 
+ */
 export const runTaskInQueue = (fn: () => Promise<void>) => {
     tail = tail.then(fn).catch((e) => {
         console.error("Dialog queue error", e);
diff --git a/app/providers/DialogProvider/useDialogFiber.ts b/app/providers/DialogProvider/useDialogFiber.ts
index 7b77cb4..28f449e 100644
--- a/app/providers/DialogProvider/useDialogFiber.ts
+++ b/app/providers/DialogProvider/useDialogFiber.ts
@@ -70,10 +70,8 @@ export function useDialogFiber() {
         }
         await runQuery(
             "INSERT INTO accounts_sync_times (account, last_sync) VALUES (?, ?) " +
-            "ON CONFLICT(account) DO UPDATE SET last_sync = CASE " +
-            "WHEN excluded.last_sync > last_sync THEN excluded.last_sync " +
-            "ELSE last_sync END",
-            [publicKey, timestamp]
+                "ON CONFLICT(account) DO UPDATE SET last_sync = ?",
+            [publicKey, timestamp, timestamp]
         );
     };    
 
@@ -580,6 +578,7 @@ export function useDialogFiber() {
             const messageId = packet.getMessageId();
             await runQuery(`UPDATE messages SET delivered = ?, timestamp = ? WHERE message_id = ? AND account = ?`, [DeliveredMessageState.DELIVERED, Date.now(), messageId, publicKey]);
             updateDialog(packet.getToPublicKey());
+            updateSyncTime(Date.now());
             log("Delivery packet received msg id " + messageId);
             addOrUpdateDialogCache(packet.getToPublicKey(), getDialogCache(packet.getToPublicKey()).map((message) => {
                 if (message.message_id == messageId) {