diff --git a/composer.json b/composer.json
index a5a0027..225fb87 100644
--- a/composer.json
+++ b/composer.json
@@ -8,7 +8,7 @@
     }],
     "require": {
         "php": "^5.6 || ^7.0",
-        "socialiteproviders/manager": "~2.0"
+        "socialiteproviders/manager": "~3.0"
     },
     "autoload": {
         "psr-4": {
diff --git a/src/Provider.php b/src/Provider.php
index 193cb81..7ad9b2f 100644
--- a/src/Provider.php
+++ b/src/Provider.php
@@ -48,13 +48,13 @@ protected function getUserByToken($token)
             'fields'          => 'uid,name,first_name,last_name,birthday,pic190x190,has_email,email'
         ];
 
-        ksort($params);
+        ksort($params, SORT_STRING);
 
         $_params = array_map(function($key, $value) {
             return $key . '=' . $value;
         }, array_keys($params), array_values($params));
 
-        $params['sig'] = md5(join('', $_params) . md5($token . $this->clientSecret));
+        $params['sig'] = md5(implode('', $_params) . md5($token . $this->clientSecret));
         $params['access_token'] = $token;
 
         $response = $this->getHttpClient()->get(