diff --git a/README.md b/README.md
index 70d38de..ed33c4e 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
-# bitrix24-app-core
+# bitrix24-php-lib
 
-Bitrix24 application core
+PHP lib for Bitrix24 application development
 
 ## Область применения
 
diff --git a/composer.json b/composer.json
index 593339e..e5e973d 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,5 @@
 {
-  "name": "mesilov/bitrix24-app-core",
+  "name": "mesilov/bitrix24-php-lib",
   "description": "A powerful PHP library for rapid Bitrix24 application development",
   "keywords": [
     "Bitrix24",
@@ -56,12 +56,12 @@
   },
   "autoload": {
     "psr-4": {
-      "Bitrix24\\SDK\\ApplicationCore\\": "src"
+      "Bitrix24\\SDK\\Lib\\": "src"
     }
   },
   "autoload-dev": {
     "psr-4": {
-      "Bitrix24\\SDK\\ApplicationCore\\Tests\\": "tests",
+      "Bitrix24\\SDK\\Lib\\Tests\\": "tests",
       "Bitrix24\\SDK\\Tests\\":"vendor/mesilov/bitrix24-php-sdk/tests"
     }
   }
diff --git a/src/Bitrix24Accounts/Entity/Bitrix24Account.php b/src/Bitrix24Accounts/Entity/Bitrix24Account.php
index 5bd67b2..527f5b1 100644
--- a/src/Bitrix24Accounts/Entity/Bitrix24Account.php
+++ b/src/Bitrix24Accounts/Entity/Bitrix24Account.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * This file is part of the bitrix24-app-core package.
+ * This file is part of the bitrix24-php-lib package.
  *
  * © Maksim Mesilov <mesilov.maxim@gmail.com>
  *
@@ -10,7 +10,7 @@
 
 declare(strict_types=1);
 
-namespace Bitrix24\SDK\ApplicationCore\Bitrix24Accounts\Entity;
+namespace Bitrix24\SDK\Lib\Bitrix24Accounts\Entity;
 
 use Bitrix24\SDK\Application\Contracts\Bitrix24Accounts\Entity\Bitrix24AccountInterface;
 use Bitrix24\SDK\Application\Contracts\Bitrix24Accounts\Entity\Bitrix24AccountStatus;
diff --git a/tests/Unit/Bitrix24Accounts/Entity/Bitrix24AccountTest.php b/tests/Unit/Bitrix24Accounts/Entity/Bitrix24AccountTest.php
index f4986a9..823384f 100644
--- a/tests/Unit/Bitrix24Accounts/Entity/Bitrix24AccountTest.php
+++ b/tests/Unit/Bitrix24Accounts/Entity/Bitrix24AccountTest.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * This file is part of the bitrix24-app-core package.
+ * This file is part of the bitrix24-php-lib package.
  *
  * © Maksim Mesilov <mesilov.maxim@gmail.com>
  *
@@ -11,7 +11,7 @@
 
 declare(strict_types=1);
 
-namespace Bitrix24\SDK\ApplicationCore\Tests\Unit\Bitrix24Accounts\Entity;
+namespace Bitrix24\SDK\Lib\Tests\Unit\Bitrix24Accounts\Entity;
 
 use Bitrix24\SDK\Application\Contracts\Bitrix24Accounts\Entity\Bitrix24AccountInterface;
 use Bitrix24\SDK\Application\Contracts\Bitrix24Accounts\Entity\Bitrix24AccountStatus;
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 8131bde..94def9c 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * This file is part of the bitrix24-app-core package.
+ * This file is part of the bitrix24-php-lib package.
  *
  * © Maksim Mesilov <mesilov.maxim@gmail.com>
  *