diff --git a/php/connect.php b/php/connect.php
index 4260e5d..5f6f95d 100644
--- a/php/connect.php
+++ b/php/connect.php
@@ -6,7 +6,7 @@
     $passwd = $CONFIG['passwd'],
     $database = $CONFIG['database']
   );
-  $mysqli->set_charset("utf8");
+  $mysqli->set_charset("utf8mb4");
   if (!is_null($mysqli->connect_error))
   {
       header("Location: /error/DBConnFailed");