diff --git a/README.md b/README.md
index 9a357b5..ad719f6 100644
--- a/README.md
+++ b/README.md
@@ -19,8 +19,8 @@ The main idea is simple: register Listener of PHPUnit and call Mocker at first.
     
     use PHPUnit\Runner\BeforeTestHook;
     use PHPUnit\Runner\BeforeFirstTestHook;
-    use Xepozz\InternalFunctionMocker\Mocker;
-    use Xepozz\InternalFunctionMocker\MockerState;
+    use Xepozz\InternalMocker\Mocker;
+    use Xepozz\InternalMocker\MockerState;
     
     final class MockerExtension implements BeforeTestHook, BeforeFirstTestHook
     {
@@ -112,7 +112,7 @@ class ServiceTest extends TestCase
 ```
 
 See full example
-in [`\Xepozz\InternalFunctionMocker\Tests\Integration\DateTimeTest::testRun2`](tests/Integration/DateTimeTest.php)
+in [`\Xepozz\InternalMocker\Tests\Integration\DateTimeTest::testRun2`](tests/Integration/DateTimeTest.php)
 
 #### Pre-defined mock
 
diff --git a/composer.json b/composer.json
index c8de418..1c6416f 100644
--- a/composer.json
+++ b/composer.json
@@ -1,14 +1,14 @@
 {
-    "name": "xepozz/internal-function-mock",
+    "name": "xepozz/internal-mocker",
     "type": "library",
     "autoload": {
         "psr-4": {
-            "Xepozz\\InternalFunctionMocker\\": "src/"
+            "Xepozz\\InternalMocker\\": "src/"
         }
     },
     "autoload-dev": {
         "psr-4": {
-            "Xepozz\\InternalFunctionMocker\\Tests\\": "tests/"
+            "Xepozz\\InternalMocker\\Tests\\": "tests/"
         }
     },
     "authors": [
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index d5d6403..e822785 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -11,7 +11,7 @@
          resolveDependencies="true">
 
     <extensions>
-        <extension class="Xepozz\InternalFunctionMocker\Tests\Listener"/>
+        <extension class="Xepozz\InternalMocker\Tests\Listener"/>
     </extensions>
     <php>
         <ini name="error_reporting" value="-1"/>
diff --git a/src/Mocker.php b/src/Mocker.php
index b50afdf..b58ec65 100644
--- a/src/Mocker.php
+++ b/src/Mocker.php
@@ -1,7 +1,7 @@
 <?php
 declare(strict_types=1);
 
-namespace Xepozz\InternalFunctionMocker;
+namespace Xepozz\InternalMocker;
 
 use Yiisoft\VarDumper\VarDumper;
 
diff --git a/src/MockerState.php b/src/MockerState.php
index c8382e3..d72d1ea 100644
--- a/src/MockerState.php
+++ b/src/MockerState.php
@@ -1,7 +1,7 @@
 <?php
 declare(strict_types=1);
 
-namespace Xepozz\InternalFunctionMocker;
+namespace Xepozz\InternalMocker;
 
 final class MockerState
 {
diff --git a/tests/Integration/DateTime.php b/tests/Integration/DateTime.php
index 1a4c117..42f0cfc 100644
--- a/tests/Integration/DateTime.php
+++ b/tests/Integration/DateTime.php
@@ -1,7 +1,7 @@
 <?php
 declare(strict_types=1);
 
-namespace Xepozz\InternalFunctionMocker\Tests\Integration;
+namespace Xepozz\InternalMocker\Tests\Integration;
 
 class DateTime
 {
diff --git a/tests/Integration/DateTimeTest.php b/tests/Integration/DateTimeTest.php
index 0fc8beb..b8ab1e0 100644
--- a/tests/Integration/DateTimeTest.php
+++ b/tests/Integration/DateTimeTest.php
@@ -1,10 +1,10 @@
 <?php
 declare(strict_types=1);
 
-namespace Xepozz\InternalFunctionMocker\Tests\Integration;
+namespace Xepozz\InternalMocker\Tests\Integration;
 
 use PHPUnit\Framework\TestCase;
-use Xepozz\InternalFunctionMocker\MockerState;
+use Xepozz\InternalMocker\MockerState;
 
 final class DateTimeTest extends TestCase
 {
@@ -20,7 +20,7 @@ public function testRun2()
         $obj = new DateTime();
 
         MockerState::addCondition(
-            'Xepozz\InternalFunctionMocker\Tests\Integration',
+            'Xepozz\InternalMocker\Tests\Integration',
             'time',
             [],
             100
diff --git a/tests/Integration/StrContains.php b/tests/Integration/StrContains.php
index 21f1954..63e7c07 100644
--- a/tests/Integration/StrContains.php
+++ b/tests/Integration/StrContains.php
@@ -1,7 +1,7 @@
 <?php
 declare(strict_types=1);
 
-namespace Xepozz\InternalFunctionMocker\Tests\Integration;
+namespace Xepozz\InternalMocker\Tests\Integration;
 
 class StrContains
 {
diff --git a/tests/Integration/StrContainsTest.php b/tests/Integration/StrContainsTest.php
index ababaa9..057bfff 100644
--- a/tests/Integration/StrContainsTest.php
+++ b/tests/Integration/StrContainsTest.php
@@ -1,10 +1,10 @@
 <?php
 declare(strict_types=1);
 
-namespace Xepozz\InternalFunctionMocker\Tests\Integration;
+namespace Xepozz\InternalMocker\Tests\Integration;
 
 use PHPUnit\Framework\TestCase;
-use Xepozz\InternalFunctionMocker\MockerState;
+use Xepozz\InternalMocker\MockerState;
 
 class StrContainsTest extends TestCase
 {
@@ -34,7 +34,7 @@ public function testRun4()
         $obj = new StrContains();
 
         MockerState::addCondition(
-            'Xepozz\InternalFunctionMocker\Tests\Integration',
+            'Xepozz\InternalMocker\Tests\Integration',
             'str_contains',
             ['string4', 'str'],
             false
diff --git a/tests/Listener.php b/tests/Listener.php
index 985a1d6..47daa0f 100644
--- a/tests/Listener.php
+++ b/tests/Listener.php
@@ -1,12 +1,12 @@
 <?php
 declare(strict_types=1);
 
-namespace Xepozz\InternalFunctionMocker\Tests;
+namespace Xepozz\InternalMocker\Tests;
 
 use PHPUnit\Runner\BeforeFirstTestHook;
 use PHPUnit\Runner\BeforeTestHook;
-use Xepozz\InternalFunctionMocker\Mocker;
-use Xepozz\InternalFunctionMocker\MockerState;
+use Xepozz\InternalMocker\Mocker;
+use Xepozz\InternalMocker\MockerState;
 
 final class Listener implements BeforeFirstTestHook, BeforeTestHook
 {
@@ -14,13 +14,13 @@ public function executeBeforeFirstTest(): void
     {
         $mocks = [
             [
-                'namespace' => 'Xepozz\InternalFunctionMocker\Tests\Integration',
+                'namespace' => 'Xepozz\InternalMocker\Tests\Integration',
                 'name' => 'time',
                 'result' => 555,
                 'arguments' => [],
             ],
             [
-                'namespace' => 'Xepozz\InternalFunctionMocker\Tests\Integration',
+                'namespace' => 'Xepozz\InternalMocker\Tests\Integration',
                 'name' => 'str_contains',
                 'result' => false,
                 'arguments' => [
@@ -29,7 +29,7 @@ public function executeBeforeFirstTest(): void
                 ],
             ],
             [
-                'namespace' => 'Xepozz\InternalFunctionMocker\Tests\Integration',
+                'namespace' => 'Xepozz\InternalMocker\Tests\Integration',
                 'name' => 'str_contains',
                 'result' => false,
                 'arguments' => [
diff --git a/tests/MockerTest.php b/tests/MockerTest.php
index 986d097..cd19c20 100644
--- a/tests/MockerTest.php
+++ b/tests/MockerTest.php
@@ -1,11 +1,11 @@
 <?php
 declare(strict_types=1);
 
-namespace Xepozz\InternalFunctionMocker\Tests;
+namespace Xepozz\InternalMocker\Tests;
 
 use PHPUnit\Framework\TestCase;
-use Xepozz\InternalFunctionMocker\Mocker;
-use Xepozz\InternalFunctionMocker\MockerState;
+use Xepozz\InternalMocker\Mocker;
+use Xepozz\InternalMocker\MockerState;
 
 final class MockerTest extends TestCase
 {
@@ -26,25 +26,25 @@ public function generateProvider()
             [
                 [
                     [
-                        'namespace' => 'Xepozz\InternalFunctionMocker\Tests\Integration',
+                        'namespace' => 'Xepozz\InternalMocker\Tests\Integration',
                         'name' => 'time',
                         'result' => 555,
                         'arguments' => [],
                     ],
                 ],
                 <<<PHP
-                namespace Xepozz\InternalFunctionMocker;
+                namespace Xepozz\InternalMocker;
                 MockerState::addCondition(
-                    "Xepozz\InternalFunctionMocker\Tests\Integration", 
+                    "Xepozz\InternalMocker\Tests\Integration", 
                     "time",
                     [],
                     555
                 );
                 
                 
-                namespace Xepozz\InternalFunctionMocker\Tests\Integration;
+                namespace Xepozz\InternalMocker\Tests\Integration;
                 
-                use Xepozz\InternalFunctionMocker\MockerState;
+                use Xepozz\InternalMocker\MockerState;
                 
                 function time(...\$arguments)
                 {
@@ -58,7 +58,7 @@ function time(...\$arguments)
             [
                 [
                     [
-                        'namespace' => 'Xepozz\InternalFunctionMocker\Tests\Integration',
+                        'namespace' => 'Xepozz\InternalMocker\Tests\Integration',
                         'name' => 'str_contains',
                         'result' => false,
                         'arguments' => [
@@ -67,7 +67,7 @@ function time(...\$arguments)
                         ],
                     ],
                     [
-                        'namespace' => 'Xepozz\InternalFunctionMocker\Tests\Integration',
+                        'namespace' => 'Xepozz\InternalMocker\Tests\Integration',
                         'name' => 'str_contains',
                         'result' => false,
                         'arguments' => [
@@ -77,24 +77,24 @@ function time(...\$arguments)
                     ],
                 ],
                 <<<PHP
-                namespace Xepozz\InternalFunctionMocker;
+                namespace Xepozz\InternalMocker;
                 MockerState::addCondition(
-                    "Xepozz\InternalFunctionMocker\Tests\Integration", 
+                    "Xepozz\InternalMocker\Tests\Integration", 
                     "str_contains",
                     ['haystack' => 'string','needle' => 'str'],
                     false
                 );
                 MockerState::addCondition(
-                    "Xepozz\InternalFunctionMocker\Tests\Integration", 
+                    "Xepozz\InternalMocker\Tests\Integration", 
                     "str_contains",
                     ['haystack' => 'string2','needle' => 'str'],
                     false
                 );
 
 
-                namespace Xepozz\InternalFunctionMocker\Tests\Integration;
+                namespace Xepozz\InternalMocker\Tests\Integration;
                 
-                use Xepozz\InternalFunctionMocker\MockerState;
+                use Xepozz\InternalMocker\MockerState;
 
                 function str_contains(...\$arguments)
                 {