diff --git a/composer.json b/composer.json
index ca181e9..8a0f1ea 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,13 @@
 {
    "name": "akaunting/menu",
    "description": "Menu and sidebar management package for Laravel.",
-   "keywords": ["laravel", "menu", "navigation", "sidebar", "bootstrap"],
+   "keywords": [
+       "laravel",
+       "menu",
+       "navigation",
+       "sidebar",
+       "bootstrap"
+   ],
    "license": "MIT",
    "authors": [
         {  
@@ -13,10 +19,10 @@
    ],
    "require": {  
         "php": ">=7.1",
-        "illuminate/config": ">=5.5 <6.0",
-        "illuminate/support": ">=5.5 <6.0",
-        "illuminate/view": ">=5.5 <6.0",
-        "laravelcollective/html": ">=5.5 <6.0"
+        "illuminate/config": ">=5.5",
+        "illuminate/support": ">=5.5",
+        "illuminate/view": ">=5.5",
+        "laravelcollective/html": ">=5.5"
    },
    "require-dev": {  
         "friendsofphp/php-cs-fixer": "^2.10",
diff --git a/src/MenuItem.php b/src/MenuItem.php
index 01de2c5..1670f7b 100644
--- a/src/MenuItem.php
+++ b/src/MenuItem.php
@@ -6,6 +6,7 @@
 use Collective\Html\HtmlFacade as HTML;
 use Illuminate\Contracts\Support\Arrayable as ArrayableContract;
 use Illuminate\Support\Facades\Request;
+use Illuminate\Support\Str;
 
 /**
  * @property string url
@@ -100,7 +101,7 @@ protected static function setIconAttribute(array $properties)
      */
     protected static function getRandomName(array $attributes)
     {
-        return substr(md5(array_get($attributes, 'title', str_random(6))), 0, 5);
+        return substr(md5(array_get($attributes, 'title', Str::random(6))), 0, 5);
     }
 
     /**
diff --git a/src/Presenters/Bootstrap3/Sidebar.php b/src/Presenters/Bootstrap3/Sidebar.php
index e5093e0..699d3e5 100644
--- a/src/Presenters/Bootstrap3/Sidebar.php
+++ b/src/Presenters/Bootstrap3/Sidebar.php
@@ -3,6 +3,7 @@
 namespace Akaunting\Menu\Presenters\Bootstrap3;
 
 use Akaunting\Menu\Presenters\Presenter;
+use Illuminate\Support\Str;
 
 class Sidebar extends Presenter
 {
@@ -82,7 +83,7 @@ public function getHeaderWrapper($item)
      */
     public function getMenuWithDropDownWrapper($item)
     {
-        $id = str_random();
+        $id = Str::random();
 
         return '
 		<li class="' . $this->getActiveStateOnChild($item) . ' panel panel-default" id="dropdown">