diff --git a/src/MessageQuery.php b/src/MessageQuery.php
index e6711fa..b4e3790 100644
--- a/src/MessageQuery.php
+++ b/src/MessageQuery.php
@@ -258,23 +258,29 @@ protected function populate(Collection $uids): MessageCollection
      */
     protected function fetch(Collection $messages): array
     {
-        if ($this->fetchOrder === 'desc') {
-            $messages = $messages->reverse();
-        }
+        $messages = match ($this->fetchOrder) {
+            'asc' => $messages->sort(SORT_NUMERIC),
+            'desc' => $messages->sortDesc(SORT_NUMERIC),
+        };
 
-        $uids = $messages->forPage($this->page, $this->limit)->toArray();
+        $uids = $messages->forPage($this->page, $this->limit)
+            ->values()
+            ->all();
 
         $flags = $this->fetchFlags ? $this->connection()
             ->flags($uids)
-            ->mapWithKeys(MessageResponseParser::getFlags(...))->all() : [];
+            ->mapWithKeys(MessageResponseParser::getFlags(...))
+            ->all() : [];
 
         $headers = $this->fetchHeaders ? $this->connection()
             ->bodyHeader($uids, $this->fetchAsUnread)
-            ->mapWithKeys(MessageResponseParser::getBodyHeader(...))->all() : [];
+            ->mapWithKeys(MessageResponseParser::getBodyHeader(...))
+            ->all() : [];
 
         $contents = $this->fetchBody ? $this->connection()
             ->bodyText($uids, $this->fetchAsUnread)
-            ->mapWithKeys(MessageResponseParser::getBodyText(...))->all() : [];
+            ->mapWithKeys(MessageResponseParser::getBodyText(...))
+            ->all() : [];
 
         return [
             'uids' => $uids,
diff --git a/tests/Integration/MailboxTest.php b/tests/Integration/MailboxTest.php
index a6cc9b2..84ee47d 100644
--- a/tests/Integration/MailboxTest.php
+++ b/tests/Integration/MailboxTest.php
@@ -17,7 +17,7 @@
 test('capabilities', function () {
     $mailbox = mailbox();
 
-    expect($mailbox->capabilities())->toBe([
+    expect(array_flip($mailbox->capabilities()))->toHaveKeys([
         'IMAP4rev1',
         'LITERAL+',
         'UIDPLUS',