diff --git a/composer.json b/composer.json
index 6aea050e..48e5f292 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
         }
     ],
     "require": {
-        "laravel/framework": "^10.0",
+        "laravel/framework": "^10.0|^11.0|^12.0",
         "softcreatr/jsonpath": "^0.7.2"
     },
     "autoload": {
diff --git a/src/Etl.php b/src/Etl.php
index 7cbc4f19..405b08fb 100644
--- a/src/Etl.php
+++ b/src/Etl.php
@@ -29,7 +29,7 @@ class Etl
      * @param  Pipeline  $pipeline
      * @return void
      */
-    public function __construct(Container $container = null, Pipeline $pipeline = null)
+    public function __construct(?Container $container = null, Pipeline $pipeline = null)
     {
         $this->container = $container ?? Container::getInstance();
         $this->pipeline = $pipeline ?? new Pipeline;