diff --git a/typo3/sysext/core/Classes/Resource/OnlineMedia/Helpers/YouTubeHelper.php b/typo3/sysext/core/Classes/Resource/OnlineMedia/Helpers/YouTubeHelper.php
index 1d619847604510a39e2013a14ed0cd6ee222f510..557fe396bdb182000492a3db04c4e1208154f7a6 100644
--- a/typo3/sysext/core/Classes/Resource/OnlineMedia/Helpers/YouTubeHelper.php
+++ b/typo3/sysext/core/Classes/Resource/OnlineMedia/Helpers/YouTubeHelper.php
@@ -101,7 +101,7 @@ class YouTubeHelper extends AbstractOEmbedHelper
     protected function getOEmbedUrl($mediaId, $format = 'json')
     {
         return sprintf(
-            'https://www.youtube.com/oembed?url=%s&format=%s',
+            'https://www.youtube.com/oembed?url=%s&format=%s&maxwidth=2048&maxheight=2048',
             rawurlencode(sprintf('https://www.youtube.com/watch?v=%s', rawurlencode($mediaId))),
             rawurlencode($format)
         );