diff --git a/GameEngine/Generator.php b/GameEngine/Generator.php
index 2b8ed1e8..c7ce83e9 100755
--- a/GameEngine/Generator.php
+++ b/GameEngine/Generator.php
@@ -18,7 +18,7 @@ class MyGenerator {
    public function generateRandStr($length){
 	  $randstr = "";
 		for($i = 0; $i < $length; $i++){
-			$randnum = mt_rand(0, 61);
+			$randnum = random_int(0, 61);
 			if($randnum < 10) $randstr .= chr($randnum + 48);
 			else if($randnum < 36) $randstr .= chr($randnum + 55);
 			else $randstr .= chr($randnum + 61);