diff --git a/composer.json b/composer.json
index 5cb734c..7f38e29 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
         }
     ],
     "require": {
-        "php": ">=5.3.0",
+        "php": "8.*",
         "illuminate/support": ">=4.0.0"
     },
     "require-dev": {
@@ -25,5 +25,10 @@
             "JCrowe\\BadWordFilter\\": "src/"
         }
     },
-    "minimum-stability": "stable"
-}
\ No newline at end of file
+    "minimum-stability": "stable",
+    "config": {
+        "allow-plugins": {
+            "kylekatarnls/update-helper": true
+        }
+    }
+}
diff --git a/src/JCrowe/BadWordFilter/BadWordFilter.php b/src/JCrowe/BadWordFilter/BadWordFilter.php
index 724f472..b472e84 100644
--- a/src/JCrowe/BadWordFilter/BadWordFilter.php
+++ b/src/JCrowe/BadWordFilter/BadWordFilter.php
@@ -247,7 +247,7 @@ private function findBadWordsInArray(array $input = [], $previousKey = false)
      *
      * @return mixed
      */
-    private function cleanArray(array $array = [], $replaceWith)
+    private function cleanArray(array $array, $replaceWith)
     {
         $dirtyKeys = $this->findBadWordsInArray($array);
 
@@ -515,14 +515,8 @@ private function getBadWordsFromDB()
      */
     private function flattenArray($array)
     {
-       	$objTmp = (object)['aFlat' => []];
-        
-        $callBack = function(&$v, $k, &$t) {
-	        $t->aFlat[] = $v;
-        };
-
-        array_walk_recursive($array, $callBack, $objTmp);
-
+        $objTmp = (object)['aFlat' => []];
+        array_walk_recursive($array, function($v) use (&$objTmp){$objTmp->aFlat[] = $v;});
         return $objTmp->aFlat;
     }
 
@@ -548,4 +542,4 @@ private function hasAlternateSourceFile(array $options)
         return !empty($options['source_file']) && $options['source_file'] !== $this->defaults['source_file'];
     }
 
-}
+}
\ No newline at end of file