diff --git a/.phpintel/9a61876eeb183760807a2dc585ba338f b/.phpintel/9a61876eeb183760807a2dc585ba338f
new file mode 100644
index 0000000..640e9c8
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diff --git a/.phpintel/dc5064f39c91477a8d52fa1b186d34c0 b/.phpintel/dc5064f39c91477a8d52fa1b186d34c0
new file mode 100644
index 0000000..3d6eba7
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diff --git a/.phpintel/index b/.phpintel/index
new file mode 100644
index 0000000..a234f15
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diff --git a/composer.json b/composer.json
index 3c4bdba..19a16b8 100644
--- a/composer.json
+++ b/composer.json
@@ -9,15 +9,15 @@
 		}
 	],
 	"require": {
-		"php": ">=5.5.0",
-		"illuminate/support": "4 - 5"
+		"php": ">=7.0",
+		"illuminate/support": "^5.5|^6.0"
 	},
 	"require-dev": {
-		"phpunit/phpunit": "~4.7",
+		"phpunit/phpunit": "~8.0",
 		"bkwld/upchuck": "^2.0@dev",
-		"illuminate/database": "4 - 5",
+		"illuminate/database": "^5.5|^6.0",
 		"league/flysystem-vfs": "^1.0",
-		"mockery/mockery": "^0.9.4",
+		"mockery/mockery": "^1.2.3",
 		"satooshi/php-coveralls": "^1.0"
 	},
 	"suggest": {
diff --git a/src/Cloner.php b/src/Cloner.php
index 6f57388..4aea69a 100644
--- a/src/Cloner.php
+++ b/src/Cloner.php
@@ -168,7 +168,7 @@ protected function duplicatePivotedRelation($relation, $relation_name, $clone) {
 
 		// Loop trough current relations and attach to clone
 		$relation->get()->each(function ($foreign) use ($clone, $relation_name) {
-			$pivot_attributes = array_except($foreign->pivot->getAttributes(), [
+			$pivot_attributes = Arr::except($foreign->pivot->getAttributes(), [
 				$foreign->pivot->getRelatedKey(),
 				$foreign->pivot->getForeignKey(),
 				$foreign->pivot->getCreatedAtColumn(),
diff --git a/tests/FunctionalTest.php b/tests/FunctionalTest.php
index 0f87acd..4af3b91 100644
--- a/tests/FunctionalTest.php
+++ b/tests/FunctionalTest.php
@@ -73,26 +73,26 @@ protected function setUpDatabase() {
 	// https://github.com/laracasts/TestDummy/blob/master/tests/FactoryTest.php#L31
 	protected function migrateTables($connection = 'default') {
 		DB::connection($connection)->getSchemaBuilder()->create('articles', function (Blueprint $table) {
-			$table->increments('id');
+			$table->bigIncrements('id');
 			$table->string('title');
 			$table->timestamps();
 		});
 
 		DB::connection($connection)->getSchemaBuilder()->create('authors', function (Blueprint $table) {
-			$table->increments('id');
+			$table->bigIncrements('id');
 			$table->string('name');
 			$table->timestamps();
 		});
 
 		DB::connection($connection)->getSchemaBuilder()->create('article_author', function (Blueprint $table) {
-			$table->increments('id');
-			$table->integer('article_id')->unsigned();
-			$table->integer('author_id')->unsigned();
+			$table->bigIncrements('id');
+			$table->bigInteger('article_id')->unsigned();
+			$table->bigInteger('author_id')->unsigned();
 		});
 
 		DB::connection($connection)->getSchemaBuilder()->create('photos', function (Blueprint $table) {
-			$table->increments('id');
-			$table->integer('article_id')->unsigned();
+			$table->bigIncrements('id');
+			$table->bigInteger('article_id')->unsigned();
 			$table->string('uid');
 			$table->string('image');
 			$table->boolean('source')->nullable();
@@ -100,15 +100,15 @@ protected function migrateTables($connection = 'default') {
 		});
 
 		DB::connection($connection)->getSchemaBuilder()->create('users', function (Blueprint $table) {
-			$table->increments('id');
+			$table->bigIncrements('id');
 			$table->string('name');
 			$table->timestamps();
 		});
 
 		DB::connection($connection)->getSchemaBuilder()->create('article_user', function (Blueprint $table) {
-			$table->integer('rating')->unsigned();
-			$table->integer('user_id')->unsigned();
-			$table->integer('article_id')->unsigned();
+			$table->bigInteger('rating')->unsigned();
+			$table->bigInteger('user_id')->unsigned();
+			$table->bigInteger('article_id')->unsigned();
 			$table->timestamps();
 		});
 	}