diff --git a/README.md b/README.md
index f812ba0..7229334 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ composer require 1sept/oauth2-vkontakte
 ## Configuration
 
 ```php
-$provider = new J4k\OAuth2\Client\Provider\Vkontakte([
+$provider = new 1Sept\OAuth2\Client\Provider\Vkontakte([
     'clientId'     => '1234567',
     'clientSecret' => 's0meRe4lLySEcRetC0De',
     'redirectUri'  => 'https://example.org/oauth-endpoint',
@@ -66,15 +66,15 @@ else {
 
 ### Public
 ```php
-$provider->usersGet([1234, 56789]); // => \J4k\OAuth2\Client\Provider\User[]
-$provider->friendsGet(23456);        // => \J4k\OAuth2\Client\Provider\User[]
+$provider->usersGet([1234, 56789]); // => \1Sept\OAuth2\Client\Provider\User[]
+$provider->friendsGet(23456);        // => \1Sept\OAuth2\Client\Provider\User[]
 ```
 
 ### With additional data
 ```php
 $providerAccessToken = new \League\OAuth2\Client\Token\AccessToken(['access_token' => 'iAmAccessTokenString']);
-$provider->usersGet([1234, 56789], $providerAccessToken); // => \J4k\OAuth2\Client\Provider\User[]
-$provider->friendsGet(23456, $providerAccessToken);        // => \J4k\OAuth2\Client\Provider\User[]
+$provider->usersGet([1234, 56789], $providerAccessToken); // => \1Sept\OAuth2\Client\Provider\User[]
+$provider->friendsGet(23456, $providerAccessToken);        // => \1Sept\OAuth2\Client\Provider\User[]
 ```
 
 ## Contributions
diff --git a/composer.json b/composer.json
index dd64b0d..b2705ae 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,5 @@
 {
-    "name": "j4k/oauth2-vkontakte",
+    "name": "1sept/oauth2-vkontakte",
     "description": "VK provider for league/oauth2-client",
     "keywords": [
         "league",
@@ -22,12 +22,12 @@
     },
     "autoload": {
         "psr-4": {
-            "J4k\\OAuth2\\Client\\Provider\\": "src"
+            "1Sept\\OAuth2\\Client\\Provider\\": "src"
         }
     },
     "autoload-dev": {
         "psr-4": {
-            "J4k\\OAuth2\\Client\\Test\\Provider\\": "tests/"
+            "1Sept\\OAuth2\\Client\\Test\\Provider\\": "tests/"
         }
     }
 }
diff --git a/src/User.php b/src/User.php
index a086e3d..7514ee1 100644
--- a/src/User.php
+++ b/src/User.php
@@ -1,13 +1,13 @@
 <?php
 
-namespace J4k\OAuth2\Client\Provider;
+namespace 1Sept\OAuth2\Client\Provider;
 
 use League\OAuth2\Client\Provider\ResourceOwnerInterface;
 
 /**
  * @see     https://vk.com/dev/fields
  *
- * @package J4k\OAuth2\Client\Provider
+ * @package 1Sept\OAuth2\Client\Provider
  */
 class User implements ResourceOwnerInterface
 {
diff --git a/src/Vkontakte.php b/src/Vkontakte.php
index c3d1973..7e978e8 100644
--- a/src/Vkontakte.php
+++ b/src/Vkontakte.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace J4k\OAuth2\Client\Provider;
+namespace 1Sept\OAuth2\Client\Provider;
 
 use League\OAuth2\Client\Provider\AbstractProvider;
 use League\OAuth2\Client\Provider\Exception\IdentityProviderException;
diff --git a/tests/VkontakteTest.php b/tests/VkontakteTest.php
index e46ce3a..92e8657 100644
--- a/tests/VkontakteTest.php
+++ b/tests/VkontakteTest.php
@@ -1,9 +1,9 @@
 <?php
 
-namespace J4k\OAuth2\Client\Test\Provider;
+namespace 1Sept\OAuth2\Client\Test\Provider;
 
 use GuzzleHttp\Psr7\Response;
-use J4k\OAuth2\Client\Provider\Vkontakte as Provider;
+use 1Sept\OAuth2\Client\Provider\Vkontakte as Provider;
 use League\OAuth2\Client\Provider\Exception\IdentityProviderException;
 use League\OAuth2\Client\Token\AccessToken;
 use Mockery as m;