diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a26285a..4b37e71 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,6 +19,7 @@ jobs:
         include:
           - mediawiki_version: '1.39'
             smw_version: '4.2.0'
+            pf_version: '5.9'
             php_version: 8.1
             database_type: mysql
             database_image: "mariadb:11.2"
@@ -26,6 +27,7 @@ jobs:
             experimental: false
           - mediawiki_version: '1.39'
             smw_version: dev-master
+            pf_version: '5.9'
             php_version: 8.1
             database_type: mysql
             database_image: "mysql:8"
@@ -33,15 +35,41 @@ jobs:
             experimental: false
           - mediawiki_version: '1.40'
             smw_version: '4.2.0'
+            pf_version: '5.9'
             php_version: 8.1
             database_type: mysql
             database_image: "mariadb:11.2"
             coverage: true
             experimental: false
+          - mediawiki_version: '1.41'
+            smw_version: dev-master
+            pf_version: '5.9'
+            php_version: 8.1
+            database_type: mysql
+            database_image: "mariadb:11.2"
+            coverage: false
+            experimental: false
+          - mediawiki_version: '1.42'
+            smw_version: dev-master
+            pf_version: '5.9'
+            php_version: 8.1
+            database_type: mysql
+            database_image: "mariadb:11.2"
+            coverage: false
+            experimental: false
+          - mediawiki_version: '1.43'
+            smw_version: dev-master
+            pf_version: '5.9'
+            php_version: 8.1
+            database_type: mysql
+            database_image: "mariadb:11.2"
+            coverage: false
+            experimental: false
 
     env:
       MW_VERSION: ${{ matrix.mediawiki_version }}
       SMW_VERSION: ${{ matrix.smw_version }}
+      PF_VERSION: ${{ matrix.pf_version }}
       PHP_VERSION: ${{ matrix.php_version }}
       DB_TYPE: ${{ matrix.database_type }}
       DB_IMAGE: ${{ matrix.database_image }}
diff --git a/Makefile b/Makefile
index 840574b..b540b76 100644
--- a/Makefile
+++ b/Makefile
@@ -18,7 +18,7 @@ DB_IMAGE?=""
 
 # extensions
 SMW_VERSION?=4.2.0
-PF_VERSION?=5.5.1
+PF_VERSION?=5.9
 
 # composer
 # Enables "composer update" inside of extension
diff --git a/composer.json b/composer.json
index 9149402..75c8626 100644
--- a/composer.json
+++ b/composer.json
@@ -40,10 +40,13 @@
 		"php": ">=7.4",
 		"composer/installers": "1.*,>=1.0.1",
 		"mediawiki/semantic-media-wiki": "~4.0|~5.0",
-		"mediawiki/page-forms": ">=5.3.0"
+		"mediawiki/page-forms": ">=5.9.0"
 	},
 	"require-dev": {
-		"mediawiki/semantic-media-wiki": "@dev"
+		"mediawiki/semantic-media-wiki": "@dev",
+		"mediawiki/minus-x": "1.1.3",
+		"php-parallel-lint/php-console-highlighter": "1.0.0",
+		"php-parallel-lint/php-parallel-lint": "1.4.0"
 	},
 	"extra": {
 		"branch-alias": {
@@ -60,11 +63,14 @@
 	},
 	"scripts":{
 		"test": [
+			"@lint",
+ 			"minus-x check .",
 			"@phpunit"
 		],
 		"test-coverage": [
 			"@phpunit-coverage"
 		],
+		"lint": "parallel-lint . --exclude vendor --exclude node_modules",
 		"phpunit": "php ../../tests/phpunit/phpunit.php -c phpunit.xml.dist",
 		"phpunit-coverage": "php ../../tests/phpunit/phpunit.php -c phpunit.xml.dist --testdox --coverage-text --coverage-html coverage/php --coverage-clover coverage/php/coverage.xml"
 	}
diff --git a/tests/phpunit/Unit/ApiSemanticFormsSelectRequestProcessorTest.php b/tests/phpunit/Unit/ApiSemanticFormsSelectRequestProcessorTest.php
index a556a2c..67753c2 100644
--- a/tests/phpunit/Unit/ApiSemanticFormsSelectRequestProcessorTest.php
+++ b/tests/phpunit/Unit/ApiSemanticFormsSelectRequestProcessorTest.php
@@ -18,7 +18,7 @@
  * @author  FelixAba
  */
 class ApiSemanticFormsSelectRequestProcessorTest
-	extends \PHPUnit_Framework_TestCase {
+	extends \PHPUnit\Framework\TestCase {
 
 	private $ApiSFSRP;
 
diff --git a/tests/phpunit/Unit/ApiSemanticFormsSelectTest.php b/tests/phpunit/Unit/ApiSemanticFormsSelectTest.php
index f3e0b01..5c76e31 100644
--- a/tests/phpunit/Unit/ApiSemanticFormsSelectTest.php
+++ b/tests/phpunit/Unit/ApiSemanticFormsSelectTest.php
@@ -17,7 +17,7 @@
  *
  * @author  mwjames
  */
-class ApiSemanticFormsSelectTest extends \PHPUnit_Framework_TestCase {
+class ApiSemanticFormsSelectTest extends \PHPUnit\Framework\TestCase {
 
 	private $ApiSFS;
 	private $ApiMain;
diff --git a/tests/phpunit/Unit/OutputTest.php b/tests/phpunit/Unit/OutputTest.php
index b70eb31..3ba9741 100644
--- a/tests/phpunit/Unit/OutputTest.php
+++ b/tests/phpunit/Unit/OutputTest.php
@@ -13,7 +13,7 @@
  *
  * @author  mwjames
  */
-class OutputTest extends \PHPUnit_Framework_TestCase {
+class OutputTest extends \PHPUnit\Framework\TestCase {
 	private $data;
 
 	protected function setUp(): void {
diff --git a/tests/phpunit/Unit/SelectFieldTest.php b/tests/phpunit/Unit/SelectFieldTest.php
index 418b88e..8b35624 100644
--- a/tests/phpunit/Unit/SelectFieldTest.php
+++ b/tests/phpunit/Unit/SelectFieldTest.php
@@ -20,7 +20,7 @@
  * @group  semantic-forms-select
  * @author FelixAba
  */
-class SelectFieldTest extends \PHPUnit_Framework_TestCase {
+class SelectFieldTest extends \PHPUnit\Framework\TestCase {
 	private $selectField;
 	
 	private $other_args_query_parametrized = [ 'query' => '((Category:Building Complex))((Part Of Site::@@@@));?Display Title;format~list;sort~Display Title;sep~,;link~none;headers~hide;limit~500' ];
diff --git a/tests/phpunit/Unit/SemanticFormsSelectInputTest.php b/tests/phpunit/Unit/SemanticFormsSelectInputTest.php
index cb3a35b..071adc4 100644
--- a/tests/phpunit/Unit/SemanticFormsSelectInputTest.php
+++ b/tests/phpunit/Unit/SemanticFormsSelectInputTest.php
@@ -13,7 +13,7 @@
  *
  * @author  FelixAba
  */
-class SemanticFormsSelectInputTest extends \PHPUnit_Framework_TestCase {
+class SemanticFormsSelectInputTest extends \PHPUnit\Framework\TestCase {
 
 	private $SFSInput;