diff --git a/composer.json b/composer.json
index 8cf0314..ce2cd3e 100644
--- a/composer.json
+++ b/composer.json
@@ -13,8 +13,8 @@
   "require": {
     "php": ">=5.4",
     "ext-curl": "*",
-    "illuminate/support": "5.2.x|5.3.x|5.4.x|5.5.x|5.6.x|5.7.x|5.8.x",
-    "illuminate/contracts": "5.2.x|5.3.x|5.4.x|5.5.x|5.6.x|5.7.x|5.8.x",
+    "illuminate/support": "5.2.x|5.3.x|5.4.x|5.5.x|5.6.x|5.7.x|5.8.x|^6.0",
+    "illuminate/contracts": "5.2.x|5.3.x|5.4.x|5.5.x|5.6.x|5.7.x|5.8.x|^6.0",
     "graham-campbell/manager": "^2.4 || ^3.0 || ^4.0",
     "odenktools/php-bca": "2.*"
   },
diff --git a/config/bca.php b/config/bca.php
index 754cea1..3e90c53 100644
--- a/config/bca.php
+++ b/config/bca.php
@@ -23,7 +23,13 @@
             'host'          => 'sandbox.bca.co.id',
             'scheme'        => 'https',
             'development'   => true,
-            'options'       => [],
+            'options' => [
+                'host'     => 'sandbox.bca.co.id',
+                'scheme'   => 'https',
+                'timeout'  => 60,
+                'port'     => 443,
+                'timezone' => 'Asia/Jakarta'
+            ],
             'port'          => 443,
             'timeout'       => 30,
         ],
@@ -38,7 +44,13 @@
             'host'          => 'sandbox.bca.co.id',
             'scheme'        => 'https',
             'development'   => true,
-            'options'       => [],
+            'options' => [
+                'host'     => 'sandbox.bca.co.id',
+                'scheme'   => 'https',
+                'timeout'  => 60,
+                'port'     => 443,
+                'timezone' => 'Asia/Jakarta'
+            ],
             'port'          => 443,
             'timeout'       => 30,
         ],
diff --git a/src/BcaFactory.php b/src/BcaFactory.php
index b9eaa3e..814f17d 100644
--- a/src/BcaFactory.php
+++ b/src/BcaFactory.php
@@ -20,11 +20,11 @@ class BcaFactory
      * @param array $config
      * @param array $options optional parameter
      *
-     * @return \BcaHttp
+     * @return BcaHttp
      */
-    public function make(array $config, $options = [])
+    public function make(array $config, array $options = [])
     {
-        $config = $this->getConfig($config, $options);
+        $config = $this->getConfig($config);
 
         return $this->getClient($config, $options);
     }
@@ -33,13 +33,12 @@ public function make(array $config, $options = [])
      * Get the configuration data.
      *
      * @param string[] $config
-     * @param array $options optional parameter
      *
      * @throws \InvalidArgumentException
      *
      * @return array
      */
-    protected function getConfig(array $config, $options = array())
+    protected function getConfig(array $config)
     {
         $keys = [
             'corp_id',
@@ -55,7 +54,7 @@ protected function getConfig(array $config, $options = array())
             }
         }
 
-        return array_only($config, $keys);
+        return array_intersect_key($config, array_flip((array)$keys));
     }
 
     /**
@@ -64,9 +63,9 @@ protected function getConfig(array $config, $options = array())
      * @param string[] $auth
      * @param array $options optional parameter
      *
-     * @return \BcaHttp
+     * @return BcaHttp
      */
-    protected function getClient(array $auth, $options = [])
+    protected function getClient(array $auth, array $options = [])
     {
         return new BcaHttp(
             $auth['corp_id'],
diff --git a/tests/AbstractTestCase.php b/tests/AbstractTestCase.php
index 18ccd45..976db9a 100644
--- a/tests/AbstractTestCase.php
+++ b/tests/AbstractTestCase.php
@@ -21,7 +21,7 @@ abstract class AbstractTestCase extends AbstractPackageTestCase
      *
      * @return string
      */
-    protected function getServiceProviderClass($app)
+    protected function getServiceProviderClass()
     {
         return BcaServiceProvider::class;
     }