diff --git a/README.md b/README.md
index 078e705..81f0914 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ phputils is a share utility library
 ## Usage
 
 ```php
-use Talmp\Phputils\StrUtil;
+use Db29\Phputils\StrUtil;
 
 // normal case
 str_replace([1, 2], [2, 3], '12');                            // '33'
@@ -28,7 +28,7 @@ Need mbstring extension
 Use the package manager [composer](https://getcomposer.org/) to install phputils.
 
 ```bash
-composer require talmp/phputils
+composer require db29/phputils
 ```
 
 ## Testing
diff --git a/composer.json b/composer.json
index 953c6a6..9407cb8 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
-    "name": "talmp/phputils",
-    "description": "TALMP utility php lib",
+    "name": "db29/phputils",
+    "description": "DB29 utility php lib",
     "type": "library",
     "require-dev": {
         "phpunit/phpunit": "^9.5.20",
@@ -10,7 +10,7 @@
     "license": "MIT",
     "autoload": {
         "psr-4": {
-            "Talmp\\Phputils\\": "src/"
+            "Db29\\Phputils\\": "src/"
         }
     },
     "require": {
diff --git a/src/BashCharEscape.php b/src/BashCharEscape.php
index cf1b5c7..e51d921 100644
--- a/src/BashCharEscape.php
+++ b/src/BashCharEscape.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Talmp\Phputils;
+namespace Db29\Phputils;
 
 class BashCharEscape
 {
diff --git a/src/CLIUtil.php b/src/CLIUtil.php
index 8d4915b..232ddab 100644
--- a/src/CLIUtil.php
+++ b/src/CLIUtil.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Talmp\Phputils;
+namespace Db29\Phputils;
 
 class CLIUtil
 {
diff --git a/src/CurlCharEscape.php b/src/CurlCharEscape.php
index 677a897..d5bc411 100644
--- a/src/CurlCharEscape.php
+++ b/src/CurlCharEscape.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Talmp\Phputils;
+namespace Db29\Phputils;
 
 class CurlCharEscape
 {
diff --git a/src/EncodeUtil.php b/src/EncodeUtil.php
index 3a6a4af..f1caa18 100644
--- a/src/EncodeUtil.php
+++ b/src/EncodeUtil.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Talmp\Phputils;
+namespace Db29\Phputils;
 
 class EncodeUtil
 {
diff --git a/src/Mutex.php b/src/Mutex.php
index 9ea7b73..6d1684e 100644
--- a/src/Mutex.php
+++ b/src/Mutex.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Talmp\Phputils;
+namespace Db29\Phputils;
 
 # This is an mutex implementation at OS level
 class Mutex
diff --git a/src/ProcessUtil.php b/src/ProcessUtil.php
index c7cb5d9..f2a5816 100644
--- a/src/ProcessUtil.php
+++ b/src/ProcessUtil.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Talmp\Phputils;
+namespace Db29\Phputils;
 
 class ProcessUtil
 {
diff --git a/src/StrUtil.php b/src/StrUtil.php
index a78af3b..0cbe21b 100644
--- a/src/StrUtil.php
+++ b/src/StrUtil.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Talmp\Phputils;
+namespace Db29\Phputils;
 
 use voku\helper\ASCII;
 
diff --git a/tests/BashCharEscapeTest.php b/tests/BashCharEscapeTest.php
index c184b5d..4d31c2c 100644
--- a/tests/BashCharEscapeTest.php
+++ b/tests/BashCharEscapeTest.php
@@ -1,6 +1,6 @@
 <?php
 
-use Talmp\Phputils\BashCharEscape;
+use Db29\Phputils\BashCharEscape;
 use PHPUnit\Framework\TestCase;
 
 class BashCharEscapeTest extends TestCase
diff --git a/tests/CLIUtilTest.php b/tests/CLIUtilTest.php
index 9fcad1c..4057f0b 100644
--- a/tests/CLIUtilTest.php
+++ b/tests/CLIUtilTest.php
@@ -1,7 +1,7 @@
 <?php
 
+use Db29\Phputils\CLIUtil;
 use PHPUnit\Framework\TestCase;
-use Talmp\Phputils\CLIUtil;
 
 class CLIUtilTest extends TestCase
 {
diff --git a/tests/CurlCharEscapeTest.php b/tests/CurlCharEscapeTest.php
index 4182015..7706e2f 100644
--- a/tests/CurlCharEscapeTest.php
+++ b/tests/CurlCharEscapeTest.php
@@ -1,7 +1,7 @@
 <?php
 
+use Db29\Phputils\CurlCharEscape;
 use PHPUnit\Framework\TestCase;
-use Talmp\Phputils\CurlCharEscape;
 
 class CurlCharEscapeTest extends TestCase
 {
diff --git a/tests/EncodeUtilTest.php b/tests/EncodeUtilTest.php
index 6417862..3304346 100644
--- a/tests/EncodeUtilTest.php
+++ b/tests/EncodeUtilTest.php
@@ -1,8 +1,8 @@
 <?php
 
+use Db29\Phputils\EncodeUtil;
 use Faker\Factory;
 use PHPUnit\Framework\TestCase;
-use Talmp\Phputils\EncodeUtil;
 
 class EncodeUtilTest extends TestCase
 {
diff --git a/tests/MutexTest.php b/tests/MutexTest.php
index 837c2d5..d50f076 100644
--- a/tests/MutexTest.php
+++ b/tests/MutexTest.php
@@ -1,7 +1,7 @@
 <?php
 
+use Db29\Phputils\Mutex;
 use PHPUnit\Framework\TestCase;
-use Talmp\Phputils\Mutex;
 
 class MutexTest extends TestCase
 {
diff --git a/tests/ProcessUtilTest.php b/tests/ProcessUtilTest.php
index 4633789..734a3c5 100644
--- a/tests/ProcessUtilTest.php
+++ b/tests/ProcessUtilTest.php
@@ -1,7 +1,7 @@
 <?php
 
+use Db29\Phputils\ProcessUtil;
 use PHPUnit\Framework\TestCase;
-use Talmp\Phputils\ProcessUtil;
 
 class ProcessUtilTest extends TestCase
 {
diff --git a/tests/StrUtilTest.php b/tests/StrUtilTest.php
index 866b6c8..28ac141 100644
--- a/tests/StrUtilTest.php
+++ b/tests/StrUtilTest.php
@@ -1,7 +1,7 @@
 <?php
 
+use Db29\Phputils\StrUtil;
 use PHPUnit\Framework\TestCase;
-use Talmp\Phputils\StrUtil;
 
 class StrUtilTest extends TestCase
 {