diff --git a/Crawler.php b/Crawler.php
index 619940c..15773f4 100644
--- a/Crawler.php
+++ b/Crawler.php
@@ -1084,7 +1084,7 @@ private function parseXhtml(string $htmlContent, string $charset = 'UTF-8'): \DO
      */
     private function convertToHtmlEntities(string $htmlContent, string $charset = 'UTF-8'): string
     {
-        set_error_handler(function () { throw new \Exception(); });
+        set_error_handler(static fn () => throw new \Exception());
 
         try {
             return mb_encode_numericentity($htmlContent, [0x80, 0x10FFFF, 0, 0x1FFFFF], $charset);