diff --git a/src/Providers/PayPal.php b/src/Providers/PayPal.php
index 386d4a9..fbff158 100644
--- a/src/Providers/PayPal.php
+++ b/src/Providers/PayPal.php
@@ -29,9 +29,9 @@ class PayPal extends Base
 
     protected string $authUrl = 'https://www.paypal.com/signin/authorize';
 
-    protected string $tokenURL = 'https://api.sandbox.paypal.com/v1/oauth2/token';
+    protected string $tokenURL = 'https://api-m.paypal.com/v1/oauth2/token';
 
-    protected string $userinfoURL = 'https://api.paypal.com/v1/identity/openidconnect/userinfo';
+    protected string $userinfoURL = 'https://api.paypal.com/v1/identity/openidconnect/userinfo?schema=openid';
 
     protected array $scopes = [
         'openid', 'profile', 'email', 'address',
@@ -42,11 +42,11 @@ class PayPal extends Base
     public function __construct(array $config)
     {
         parent::__construct($config);
-        $this->sandbox = (bool) $this->config->get('sandbox', false);
+        $this->sandbox = (bool)$this->config->get('sandbox', false);
         if ($this->sandbox) {
             $this->authUrl = 'https://www.sandbox.paypal.com/signin/authorize';
             $this->tokenURL = 'https://api-m.sandbox.paypal.com/v1/oauth2/token';
-            $this->userinfoURL = 'https://api-m.sandbox.paypal.com/v1/identity/openidconnect/userinfo';
+            $this->userinfoURL = 'https://api-m.sandbox.paypal.com/v1/identity/openidconnect/userinfo?schema=openid';
         }
     }
 
@@ -97,6 +97,7 @@ protected function getTokenUrl(): string
      * @throws \Overtrue\Socialite\Exceptions\AuthorizeFailedException
      *
      * @see https://developer.paypal.com/docs/log-in-with-paypal/integrate/#link-getaccesstoken
+     *
      */
     public function tokenFromCode(string $code): array
     {
@@ -104,42 +105,16 @@ public function tokenFromCode(string $code): array
             $this->getTokenUrl(),
             [
                 'form_params' => [
-                    Contracts\RFC6749_ABNF_GRANT_TYPE => Contracts\RFC6749_ABNF_AUTHORATION_CODE,
+                    Contracts\RFC6749_ABNF_GRANT_TYPE => Contracts\RFC6749_ABNF_CLIENT_CREDENTIALS,
                     Contracts\RFC6749_ABNF_CODE => $code,
                 ],
                 'headers' => [
                     'Accept' => 'application/json',
-                    'Authorization' => 'Basic '.\base64_encode(\sprintf('%s:%s', $this->getClientId(), $this->getClientSecret())),
-                ],
-            ]
-        );
-
-        return $this->normalizeAccessTokenResponse((string) $response->getBody());
-    }
-
-    /**
-     * @throws \GuzzleHttp\Exception\GuzzleException
-     * @throws \Overtrue\Socialite\Exceptions\AuthorizeFailedException
-     *
-     * @see https://developer.paypal.com/docs/log-in-with-paypal/integrate/#link-exchangerefreshtokenforaccesstoken
-     */
-    public function refreshToken(string $refreshToken): mixed
-    {
-        $response = $this->getHttpClient()->post(
-            $this->getTokenUrl(),
-            [
-                'form_params' => [
-                    Contracts\RFC6749_ABNF_GRANT_TYPE => Contracts\RFC6749_ABNF_REFRESH_TOKEN,
-                    Contracts\RFC6749_ABNF_REFRESH_TOKEN => $refreshToken,
-                ],
-                'headers' => [
-                    'Accept' => 'application/json',
-                    'Authorization' => 'Basic '.\base64_encode(\sprintf('%s:%s', $this->getClientId(), $this->getClientSecret())),
+                    'Authorization' => 'Basic ' . \base64_encode(\sprintf('%s:%s', $this->getClientId(), $this->getClientSecret())),
                 ],
             ]
         );
-
-        return $this->normalizeAccessTokenResponse((string) $response->getBody());
+        return $this->normalizeAccessTokenResponse((string)$response->getBody());
     }
 
     /**
@@ -154,11 +129,10 @@ protected function getUserByToken(string $token): array
             [
                 'headers' => [
                     'Content-Type' => 'application/x-www-form-urlencoded',
-                    'Authorization' => 'Bearer '.$token,
+                    'Authorization' => 'Bearer ' . $token,
                 ],
             ]
         );
-
         return $this->fromJsonBody($response);
     }