diff --git a/src/MTProto.php b/src/MTProto.php
index 7838ec6fd..e66fbf8dd 100644
--- a/src/MTProto.php
+++ b/src/MTProto.php
@@ -928,10 +928,6 @@ final class MTProto implements TLCallback, LoggerGetter
      */
     private function upgradeMadelineProto(): void
     {
-        if (isset($this->hook_url) && \is_string($this->hook_url)) {
-            $this->webhookUrl = $this->hook_url;
-        }
-
         $this->logger->logger(Lang::$current_lang['serialization_ofd'], Logger::WARNING);
         foreach ($this->datacenter->getDataCenterConnections() as $dc_id => $socket) {
             if ($this->authorized === API::LOGGED_IN && \is_int($dc_id) && $socket->hasPermAuthKey() && $socket->hasTempAuthKey()) {
@@ -956,21 +952,6 @@ final class MTProto implements TLCallback, LoggerGetter
             } catch (RPCErrorException $e) {
             }
         }
-
-        async(function (): void {
-            $counter = 0;
-            foreach ($this->chats as $id => $chat) {
-                $id = (int) $id;
-                $counter ++;
-                if ($counter % 1000 === 0) {
-                    $this->logger->logger("Upgrading chats: $counter", Logger::WARNING);
-                }
-
-                if (!($chat['min'] ?? false)) {
-                    $this->minDatabase->clearPeer($id);
-                }
-            }
-        });
     }
     /**
      * Post-deserialization initialization function.
diff --git a/src/MTProtoTools/MinDatabase.php b/src/MTProtoTools/MinDatabase.php
index 62520f7b4..a369f01a2 100644
--- a/src/MTProtoTools/MinDatabase.php
+++ b/src/MTProtoTools/MinDatabase.php
@@ -61,6 +61,11 @@ final class MinDatabase implements TLCallback
      *
      */
     private bool $clean = false;
+    /**
+     * Whether we synced ourselves with the peer database.
+     *
+     */
+    private bool $synced = false;
 
     /**
      * List of properties stored in database (memory or external).
@@ -77,7 +82,7 @@ final class MinDatabase implements TLCallback
     }
     public function __sleep()
     {
-        return ['db', 'API', 'clean'];
+        return ['db', 'API', 'clean', 'synced'];
     }
     public function init(): void
     {
@@ -85,17 +90,33 @@ final class MinDatabase implements TLCallback
         if (!$this->API->getSettings()->getDb()->getEnableMinDb()) {
             $this->db->clear();
         }
-        if ($this->clean) {
-            return;
-        }
-        EventLoop::queue(function (): void {
-            foreach ($this->db as $id => $origin) {
-                if (!isset($origin['peer']) || $origin['peer'] === $id) {
-                    unset($this->db[$id]);
+        if (!$this->clean) {
+            EventLoop::queue(function (): void {
+                foreach ($this->db as $id => $origin) {
+                    if (!isset($origin['peer']) || $origin['peer'] === $id) {
+                        unset($this->db[$id]);
+                    }
                 }
-            }
-            $this->clean = true;
-        });
+                $this->clean = true;
+            });
+        }
+        if (!$this->synced) {
+            EventLoop::queue(function (): void {
+                $counter = 0;
+                foreach ($this->API->chats as $id => $chat) {
+                    $id = (int) $id;
+                    $counter++;
+                    if ($counter % 1000 === 0) {
+                        $this->API->logger->logger("Upgrading chats: $counter", Logger::WARNING);
+                    }
+
+                    if (!($chat['min'] ?? false)) {
+                        $this->clearPeer($id);
+                    }
+                }
+                $this->synced = true;
+            });
+        }
     }
     public function getMethodAfterResponseDeserializationCallbacks(): array
     {