diff --git a/composer.json b/composer.json
index 8bffbe4..5b880c7 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,7 @@
 	"description": "A CSV Validator based on Laravel's built-in Validator",
 	"type": "library",
 	"require": {
-		"laravel/framework": "~5.0"
+		"laravel/framework": "5.4.*"
 	},
 	"license": "MIT",
 	"support": {
diff --git a/src/CsvValidatorServiceProvider.php b/src/CsvValidatorServiceProvider.php
index 9a22b11..6b62a0a 100755
--- a/src/CsvValidatorServiceProvider.php
+++ b/src/CsvValidatorServiceProvider.php
@@ -35,8 +35,8 @@ public function boot()
      */
     public function register()
     {
-        $this->app['csv-validator'] = $this->app->share(function ($app) {
-            return new CsvValidator;
+        $this->app->singleton('csv-validator', function ($app) {
+            return new CsvValidator();
         });
     }