diff --git a/benchmarks/HugeSchemaBench.php b/benchmarks/HugeSchemaBench.php
index b9830c0..d0cce0f 100644
--- a/benchmarks/HugeSchemaBench.php
+++ b/benchmarks/HugeSchemaBench.php
@@ -78,7 +78,7 @@ class HugeSchemaBench
     private function createLazySchema()
     {
         return new Schema(
-            \GraphQL\Config::create()
+            \GraphQL\Type\SchemaConfig::create()
                 ->setQuery($this->schemaBuilder->buildQueryType())
                 // ->setDescriptor($this->descriptor)
                 ->setTypeLoader(function($name) {
diff --git a/tests/Type/ValidationTest.php b/tests/Type/ValidationTest.php
index 47cfbd9..97f8c94 100644
--- a/tests/Type/ValidationTest.php
+++ b/tests/Type/ValidationTest.php
@@ -814,7 +814,7 @@ class ValidationTest extends \PHPUnit_Framework_TestCase
 
         $schema = $this->schemaWithFieldType(new ObjectType([
             'name' => 'SomeObject',
-            'interfaces' => function () use ($NonUniqInterface, $AnotherInterface, $NonUniqInterface) {
+            'interfaces' => function () use ($NonUniqInterface, $AnotherInterface) {
                 return [$NonUniqInterface, $AnotherInterface, $NonUniqInterface];
             },
             'fields' => ['f' => ['type' => Type::string()]]