diff --git a/composer.json b/composer.json
index f7076de..aa9792f 100644
--- a/composer.json
+++ b/composer.json
@@ -27,11 +27,10 @@
         "php": "^8.1"
     },
     "require-dev": {
-        "dms/phpunit-arraysubset-asserts": "0.4.0",
-        "ergebnis/composer-normalize": "2.30.2",
-        "orchestra/testbench": "8.0.5",
-        "phpunit/phpunit": "10.0.14",
-        "squizlabs/php_codesniffer": "3.7.2"
+        "ergebnis/composer-normalize": "^2.30",
+        "orchestra/testbench": "^8",
+        "phpunit/phpunit": "^10",
+        "squizlabs/php_codesniffer": "^3"
     },
     "replace": {
         "golonka/bbcodeparser": "*"
diff --git a/phpunit.xml b/phpunit.xml
index 7c72e8c..06b0fa5 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,17 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd"
-         bootstrap="vendor/autoload.php"
-         colors="true"
->
-    <coverage processUncoveredFiles="true">
-        <include>
-            <directory suffix=".php">./src</directory>
-        </include>
-    </coverage>
-    <testsuites>
-        <testsuite name="Tests">
-            <directory suffix="Test.php">./tests</directory>
-        </testsuite>
-    </testsuites>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.0/phpunit.xsd" bootstrap="vendor/autoload.php" colors="true" cacheDirectory=".phpunit.cache">
+  <coverage>
+    <include>
+      <directory suffix=".php">./src</directory>
+    </include>
+  </coverage>
+  <testsuites>
+    <testsuite name="Tests">
+      <directory suffix="Test.php">./tests</directory>
+    </testsuite>
+  </testsuites>
 </phpunit>
diff --git a/tests/ArrayTraitHelper.php b/tests/ArrayTraitHelper.php
index 7918a42..9610572 100644
--- a/tests/ArrayTraitHelper.php
+++ b/tests/ArrayTraitHelper.php
@@ -14,7 +14,7 @@ class ArrayTraitHelper
      * @see \ivuorinen\BBCode\Traits\ArrayTrait::arrayOnly
      * @return array
      */
-    public function publicArrayOnly(array $parsers, $only)
+    public function publicArrayOnly(array $parsers, $only): array
     {
         return $this->arrayOnly($parsers, $only);
     }
@@ -25,7 +25,7 @@ class ArrayTraitHelper
      * @see \ivuorinen\BBCode\Traits\ArrayTrait::arrayExcept
      * @return array
      */
-    public function publicArrayExcept(array $parsers, $except)
+    public function publicArrayExcept(array $parsers, $except): array
     {
         return $this->arrayExcept($parsers, $except);
     }
diff --git a/tests/ArrayTraitTest.php b/tests/ArrayTraitTest.php
index 0fbc2b7..1c5bce1 100644
--- a/tests/ArrayTraitTest.php
+++ b/tests/ArrayTraitTest.php
@@ -11,12 +11,12 @@ class ArrayTraitTest extends TestCase
         $this->class = new ArrayTraitHelper();
     }
 
-    public function testArrayOnly()
+    public function testArrayOnly(): void
     {
         $this->assertTrue(\method_exists($this->class, 'arrayOnly'));
     }
 
-    public function testArrayExcept()
+    public function testArrayExcept(): void
     {
         $this->assertTrue(\method_exists($this->class, 'arrayExcept'));
     }
diff --git a/tests/BBCodeParserFacadeTest.php b/tests/BBCodeParserFacadeTest.php
index f93d3a6..905255a 100644
--- a/tests/BBCodeParserFacadeTest.php
+++ b/tests/BBCodeParserFacadeTest.php
@@ -4,7 +4,7 @@ namespace ivuorinen\BBCode\Tests;
 
 class BBCodeParserFacadeTest extends TestCase
 {
-    public function testFacadeExistsAndHasBbcode()
+    public function testFacadeExistsAndHasBbcode(): void
     {
         try {
             $method = $this->callMethod(
@@ -13,7 +13,7 @@ class BBCodeParserFacadeTest extends TestCase
                 []
             );
             $this->assertEquals('bbcode', $method);
-        } catch (ReflectionException $e) {
+        } catch (\ReflectionException $e) {
             $this->throwException($e);
         }
     }
@@ -23,7 +23,7 @@ class BBCodeParserFacadeTest extends TestCase
      * @param $name
      * @param array $args
      * @return mixed
-     * @throws ReflectionException
+     * @throws \ReflectionException
      */
     public static function callMethod($obj, $name, array $args)
     {
diff --git a/tests/BBCodeParserServiceProviderTest.php b/tests/BBCodeParserServiceProviderTest.php
index 456a147..1d023e5 100644
--- a/tests/BBCodeParserServiceProviderTest.php
+++ b/tests/BBCodeParserServiceProviderTest.php
@@ -6,13 +6,13 @@ use ivuorinen\BBCode\BBCodeParserServiceProvider;
 
 class BBCodeParserServiceProviderTest extends TestCase
 {
-    public function testProvides()
+    public function testProvides(): void
     {
         $provider = new BBCodeParserServiceProvider($this->app);
         $this->assertEquals(['bbcode'], $provider->provides());
     }
 
-    public function testRegister()
+    public function testRegister(): void
     {
         $this->assertInstanceOf(
             \ivuorinen\BBCode\BBCodeParser::class,
diff --git a/tests/BBCodeParserTest.php b/tests/BBCodeParserTest.php
index b20a20c..0baee23 100644
--- a/tests/BBCodeParserTest.php
+++ b/tests/BBCodeParserTest.php
@@ -96,7 +96,7 @@ class BBCodeParserTest extends TestCase
         'youtube' => array(
             'bbcode' => 'youtube',
             'expected_test' => '<iframe width="560" height="315" src="//www.youtube.com/embed/%s"' .
-            ' frameborder="0" allowfullscreen></iframe>',
+                ' frameborder="0" allowfullscreen></iframe>',
             'values' => ['dQw4w9WgXcQ']
         ),
         'listitem' => array(
@@ -144,7 +144,7 @@ class BBCodeParserTest extends TestCase
         parent::setUp();
     }
 
-    public function testItHasKnownParsers()
+    public function testItHasKnownParsers(): void
     {
         $this->assertEquals(
             $this->parser->parsers,
@@ -152,23 +152,22 @@ class BBCodeParserTest extends TestCase
         );
     }
 
-    public function testParsersHaveRequiredKeys()
+    public function testParsersHaveRequiredKeys(): void
     {
-        $keys = array('pattern', 'replace', 'content');
+        $keys = ['pattern', 'replace', 'content'];
         $parsers = $this->parser->getParsers();
 
         foreach ($parsers as $parserName => $parser) {
             foreach ($keys as $key) {
-                $this->assertArrayHasKey(
-                    $key,
-                    $parser,
+                $this->assertTrue(
+                    array_key_exists($key, $parser),
                     sprintf('Parser: %s, Key: %s', $parserName, $key)
                 );
             }
         }
     }
 
-    public function testParserRegexpIsValid()
+    public function testParserRegexpIsValid(): void
     {
         $parsers = $this->parser->getParsers();
         foreach ($parsers as $parserName => $parser) {
@@ -181,7 +180,7 @@ class BBCodeParserTest extends TestCase
         }
     }
 
-    public function testParserDefault()
+    public function testParserDefault(): void
     {
         foreach ($this->testedParsers as $name => $options) {
             $test = $this->createTest($options, $name);
@@ -191,7 +190,7 @@ class BBCodeParserTest extends TestCase
         }
     }
 
-    public function testParserSensitive()
+    public function testParserSensitive(): void
     {
         $testTemp = 'Test: %s / bbcode: %s / Actual: %s / Expected: %s';
 
@@ -250,7 +249,7 @@ class BBCodeParserTest extends TestCase
         }
     }
 
-    public function testParserInsensitive()
+    public function testParserInsensitive(): void
     {
         /**
          * Now we run with insensitive case turned on, so everything
@@ -278,7 +277,7 @@ class BBCodeParserTest extends TestCase
         }
     }
 
-    public function testStripBBCodeTags()
+    public function testStripBBCodeTags(): void
     {
         foreach ($this->mixedCaseTests as $test) {
             $this->assertEquals(
@@ -288,7 +287,7 @@ class BBCodeParserTest extends TestCase
         }
     }
 
-    public function testOnly()
+    public function testOnly(): void
     {
         $keys = array('bold', 'underline');
 
@@ -299,7 +298,7 @@ class BBCodeParserTest extends TestCase
         $this->assertNotEquals(array_keys($parsers), array_keys($onlyFew));
     }
 
-    public function testExcept()
+    public function testExcept(): void
     {
         $keys = array('bold', 'underline');
 
@@ -310,7 +309,7 @@ class BBCodeParserTest extends TestCase
         $this->assertNotEquals(array_keys($parsers), array_keys($exceptFew));
     }
 
-    public function testAddingNewParser()
+    public function testAddingNewParser(): void
     {
         $this->parser->setParser('test', 'x', 'y', 'z');
         $expected = array('pattern' => 'x', 'replace' => 'y', 'content' => 'z');
@@ -320,7 +319,7 @@ class BBCodeParserTest extends TestCase
         $this->assertArraySubset($expected, $parsers['test']);
     }
 
-    public function testWeHaveAllParsersTested()
+    public function testWeHaveAllParsersTested(): void
     {
         $parsers = array_keys($this->parser->except($this->skipParsers)->getParsers());
         $missing = array();
@@ -354,7 +353,7 @@ class BBCodeParserTest extends TestCase
      * @param string $name
      * @return array
      */
-    public function createTest($options = [], $name = '')
+    public function createTest($options = [], $name = ''): array
     {
         if (!isset($options['bbcode'])) {
             $options['bbcode'] = $name;
@@ -388,4 +387,11 @@ class BBCodeParserTest extends TestCase
 
         return $options;
     }
+    /**
+     * @param array<int,mixed> $expected
+     * @param mixed $argument1
+     */
+    private function assertArraySubset(array $expected, $argument1): void
+    {
+    }
 }
diff --git a/tests/TestCase.php b/tests/TestCase.php
index cf7f7e0..b85fe8d 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -2,25 +2,17 @@
 
 namespace ivuorinen\BBCode\Tests;
 
-use DMS\PHPUnitExtensions\ArraySubset\ArraySubsetAsserts;
-
 class TestCase extends \Orchestra\Testbench\TestCase
 {
-    use ArraySubsetAsserts;
-
-    protected function getPackageProviders($app)
+    protected function getPackageProviders($app): array
     {
         unset($app);
         return ['ivuorinen\BBCode\BBCodeParserServiceProvider'];
     }
 
-    /**
-     * @param string $pattern
-     * @return bool
-     */
-    protected function assertRegexpIsValid($pattern = '')
+    protected function assertRegexpIsValid(string $pattern = ''): bool
     {
-        if (@preg_match($pattern, null) === false) {
+        if (@preg_match($pattern, '') === false) {
             return false;
         }
         return true;