diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
index 96604ec..8303d3f 100644
--- a/.github/workflows/phpunit.yml
+++ b/.github/workflows/phpunit.yml
@@ -20,6 +20,11 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-versions }}
+
       #- name: Validate composer.json and composer.lock
       #  run: composer validate
 
diff --git a/README.md b/README.md
index 6e7cd15..6868483 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ Install `pop-dom` using Composer.
 Or, require it in your composer.json file
 
     "require": {
-        "popphp/pop-dom" : "^4.0.0"
+        "popphp/pop-dom" : "^4.0.4"
     }
 
 [Top](#pop-dom)
diff --git a/src/AbstractNode.php b/src/AbstractNode.php
index a322344..c5486e7 100644
--- a/src/AbstractNode.php
+++ b/src/AbstractNode.php
@@ -23,7 +23,7 @@
  * @author     Nick Sagona, III <dev@noladev.com>
  * @copyright  Copyright (c) 2009-2025 NOLA Interactive, LLC.
  * @license    https://www.popphp.org/license     New BSD License
- * @version    4.0.0
+ * @version    4.0.4
  */
 abstract class AbstractNode implements NodeInterface
 {
diff --git a/src/Child.php b/src/Child.php
index 00c8a29..8745537 100644
--- a/src/Child.php
+++ b/src/Child.php
@@ -23,7 +23,7 @@
  * @author     Nick Sagona, III <dev@noladev.com>
  * @copyright  Copyright (c) 2009-2025 NOLA Interactive, LLC.
  * @license    https://www.popphp.org/license     New BSD License
- * @version    4.0.0
+ * @version    4.0.4
  */
 class Child extends AbstractNode
 {
diff --git a/src/Document.php b/src/Document.php
index 124a135..2c3fd90 100644
--- a/src/Document.php
+++ b/src/Document.php
@@ -21,7 +21,7 @@
  * @author     Nick Sagona, III <dev@noladev.com>
  * @copyright  Copyright (c) 2009-2025 NOLA Interactive, LLC.
  * @license    https://www.popphp.org/license     New BSD License
- * @version    4.0.0
+ * @version    4.0.4
  */
 class Document extends AbstractNode
 {
diff --git a/src/DomIterator.php b/src/DomIterator.php
index ec8ebe0..55741fd 100644
--- a/src/DomIterator.php
+++ b/src/DomIterator.php
@@ -24,7 +24,7 @@
  * @author     Nick Sagona, III <dev@noladev.com>
  * @copyright  Copyright (c) 2009-2025 NOLA Interactive, LLC.
  * @license    https://www.popphp.org/license     New BSD License
- * @version    4.0.0
+ * @version    4.0.4
  */
 class DomIterator implements \RecursiveIterator
 {
diff --git a/src/Exception.php b/src/Exception.php
index a4a8ac1..1d9daf7 100644
--- a/src/Exception.php
+++ b/src/Exception.php
@@ -21,6 +21,6 @@
  * @author     Nick Sagona, III <dev@noladev.com>
  * @copyright  Copyright (c) 2009-2025 NOLA Interactive, LLC.
  * @license    https://www.popphp.org/license     New BSD License
- * @version    4.0.0
+ * @version    4.0.4
  */
 class Exception extends \Exception {}
diff --git a/src/NodeInterface.php b/src/NodeInterface.php
index 999354b..b8b50af 100644
--- a/src/NodeInterface.php
+++ b/src/NodeInterface.php
@@ -23,7 +23,7 @@
  * @author     Nick Sagona, III <dev@noladev.com>
  * @copyright  Copyright (c) 2009-2025 NOLA Interactive, LLC.
  * @license    https://www.popphp.org/license     New BSD License
- * @version    4.0.0
+ * @version    4.0.4
  */
 interface NodeInterface
 {