diff --git a/web/documentserver-example/php/src/common/Path.php b/web/documentserver-example/php/src/common/Path.php
index 5183e13f..21c41403 100644
--- a/web/documentserver-example/php/src/common/Path.php
+++ b/web/documentserver-example/php/src/common/Path.php
@@ -17,7 +17,7 @@
 
 namespace Example\Common;
 
-final class Path {
+class Path {
     private string $separator = DIRECTORY_SEPARATOR;
     private string $string;
 
diff --git a/web/documentserver-example/php/src/common/URL.php b/web/documentserver-example/php/src/common/URL.php
index 1cc7870e..e41c29ed 100644
--- a/web/documentserver-example/php/src/common/URL.php
+++ b/web/documentserver-example/php/src/common/URL.php
@@ -17,7 +17,7 @@
 
 namespace Example\Common;
 
-final class URL {
+class URL {
     private string $string;
 
     public function __construct(string $url) {
diff --git a/web/documentserver-example/php/src/configuration/ConfigurationManager.php b/web/documentserver-example/php/src/configuration/ConfigurationManager.php
index d172980e..83694d52 100644
--- a/web/documentserver-example/php/src/configuration/ConfigurationManager.php
+++ b/web/documentserver-example/php/src/configuration/ConfigurationManager.php
@@ -20,7 +20,7 @@ namespace Example\Configuration;
 use Example\Common\Path;
 use Example\Common\URL;
 
-final class ConfigurationManager {
+class ConfigurationManager {
     public string $version = '1.6.0';
 
     public function example_url(): ?URL {