diff --git a/src/Utils.php b/src/Utils.php
index 55d4e03..8559ff4 100644
--- a/src/Utils.php
+++ b/src/Utils.php
@@ -29,7 +29,7 @@ abstract class Utils
      *
      * @param string $pattern The pattern to search for, as a string.
      * @param string $subject The input string.
-     * @param int|null $limit If specified, then only substrings up to limit are returned with the
+     * @param int $limit If specified, then only substrings up to limit are returned with the
      *      rest of the string being placed in the last substring. A limit of -1 or 0 means "no limit".
      * @param int $flags flags can be any combination of the following flags (combined with the | bitwise operator):
      * *PREG_SPLIT_NO_EMPTY*
@@ -46,7 +46,7 @@ abstract class Utils
      *
      * @throws PcreException
      */
-    public static function pregSplit(string $pattern, string $subject, ?int $limit = -1, int $flags = 0): array
+    public static function pregSplit(string $pattern, string $subject, int $limit = -1, int $flags = 0) : array
     {
         $parts = php_preg_split($pattern, $subject, $limit, $flags);
         if ($parts === false) {