diff --git a/bl-kernel/helpers/theme.class.php b/bl-kernel/helpers/theme.class.php
index cf74099e..6645d35f 100644
--- a/bl-kernel/helpers/theme.class.php
+++ b/bl-kernel/helpers/theme.class.php
@@ -214,7 +214,7 @@ class Theme {
 
 		$scripts = '';
 		foreach($files as $file) {
-			$scripts .= '<script src="'.$base.$file.'?version='.BLUDIT_VERSION.'"></script>'.PHP_EOL;
+			$scripts .= '<script async src="'.$base.$file.'?version='.BLUDIT_VERSION.'"></script>'.PHP_EOL;
 		}
 
 		return $scripts;
@@ -253,7 +253,7 @@ class Theme {
 
 	public static function jsBootstrap()
 	{
-		return '<script src="'.DOMAIN_CORE_JS.'bootstrap.bundle.min.js?version='.BLUDIT_VERSION.'"></script>'.PHP_EOL;
+		return '<script async src="'.DOMAIN_CORE_JS.'bootstrap.bundle.min.js?version='.BLUDIT_VERSION.'"></script>'.PHP_EOL;
 	}
 
 	public static function cssBootstrap()
@@ -269,7 +269,7 @@ class Theme {
 	public static function jsSortable()
 	{
 		// https://github.com/psfpro/bootstrap-html5sortable
-		return '<script src="'.DOMAIN_CORE_JS.'jquery.sortable.min.js?version='.BLUDIT_VERSION.'"></script>'.PHP_EOL;
+		return '<script async src="'.DOMAIN_CORE_JS.'jquery.sortable.min.js?version='.BLUDIT_VERSION.'"></script>'.PHP_EOL;
 	}
 
 }