diff --git a/core/module/install/ressource/defaultdata.php b/core/module/install/ressource/defaultdata.php
index 31a4d663..317f7d21 100644
--- a/core/module/install/ressource/defaultdata.php
+++ b/core/module/install/ressource/defaultdata.php
@@ -29,7 +29,7 @@ class init extends common
 			],
 			'seo' => [
 				'robots' => true,
-				'openGraphImage' => 'screenshot.jpg'
+				'openGraphImage' => 'screenshot.png'
 			],
 			'connect' => [
 				'timeout' => 600,
diff --git a/core/module/install/ressource/files.tar.gz b/core/module/install/ressource/files.tar.gz
index a1f2de37..3b3724ab 100644
Binary files a/core/module/install/ressource/files.tar.gz and b/core/module/install/ressource/files.tar.gz differ