diff --git a/bot.js b/bot.js
index a61ddc1..6c444b6 100644
--- a/bot.js
+++ b/bot.js
@@ -40,11 +40,21 @@ class TelegramHistoryBot {
         }
     }
     getUniqueChatIds() {
-        const ids = new Set();
+        const chatMap = new Map();
+
         for (const msg of this.history) {
-            ids.add(msg.chat_id);
+            const current = chatMap.get(msg.chat_id);
+            if (!current || new Date(msg.timestamp) > new Date(current.timestamp)) {
+                chatMap.set(msg.chat_id, {
+                    chat_id: msg.chat_id,
+                    title: msg.chat_title || `(${msg.chat_id})`,
+                    timestamp: msg.timestamp
+                });
+            }
         }
-        return Array.from(ids);
+
+        // Преобразуем Map в массив, возвращаем только chat_id и title
+        return Array.from(chatMap.values()).map(({ chat_id, title }) => ({ chat_id, title }))
     }
 
     async init() {