diff --git a/tests/AsyncTestCase.php b/tests/AsyncTestCase.php
index b459c42414b..d173857ff1e 100644
--- a/tests/AsyncTestCase.php
+++ b/tests/AsyncTestCase.php
@@ -12,6 +12,7 @@
 use Psalm\Internal\RuntimeCaches;
 use Psalm\Internal\Type\TypeParser;
 use Psalm\Internal\Type\TypeTokenizer;
+use Psalm\Internal\VersionUtils;
 use Psalm\IssueBuffer;
 use Psalm\Tests\Internal\Provider\FakeParserCacheProvider;
 use Psalm\Type\Union;
@@ -40,11 +41,11 @@ public static function setUpBeforeClass(): void
         ini_set('memory_limit', '-1');
 
         if (!defined('PSALM_VERSION')) {
-            define('PSALM_VERSION', '5.0.0');
+            define('PSALM_VERSION', VersionUtils::getPsalmVersion());
         }
 
         if (!defined('PHP_PARSER_VERSION')) {
-            define('PHP_PARSER_VERSION', '5.0.0');
+            define('PHP_PARSER_VERSION', VersionUtils::getPhpParserVersion());
         }
 
         parent::setUpBeforeClass();
diff --git a/tests/Cache/CacheTest.php b/tests/Cache/CacheTest.php
index c696aef96dd..cb04a6d9e62 100644
--- a/tests/Cache/CacheTest.php
+++ b/tests/Cache/CacheTest.php
@@ -26,6 +26,15 @@
 
 class CacheTest extends TestCase
 {
+    public static function setUpBeforeClass(): void
+    {
+        parent::setUpBeforeClass();
+
+        // hack to isolate Psalm from PHPUnit cli arguments
+        global $argv;
+        $argv = [];
+    }
+
     public function setUp(): void
     {
         parent::setUp();
diff --git a/tests/Config/ConfigFileTest.php b/tests/Config/ConfigFileTest.php
index a198a41c87d..746fc62d27e 100644
--- a/tests/Config/ConfigFileTest.php
+++ b/tests/Config/ConfigFileTest.php
@@ -23,6 +23,15 @@ class ConfigFileTest extends TestCase
 {
     private string $file_path;
 
+    public static function setUpBeforeClass(): void
+    {
+        parent::setUpBeforeClass();
+
+        // hack to isolate Psalm from PHPUnit cli arguments
+        global $argv;
+        $argv = [];
+    }
+
     public function setUp(): void
     {
         RuntimeCaches::clearAll();
diff --git a/tests/Config/ConfigTest.php b/tests/Config/ConfigTest.php
index dd6a3fa6b80..8898f7e7530 100644
--- a/tests/Config/ConfigTest.php
+++ b/tests/Config/ConfigTest.php
@@ -17,7 +17,6 @@
 use Psalm\Internal\Provider\Providers;
 use Psalm\Internal\RuntimeCaches;
 use Psalm\Internal\Scanner\FileScanner;
-use Psalm\Internal\VersionUtils;
 use Psalm\Issue\TooManyArguments;
 use Psalm\Issue\UndefinedFunction;
 use Psalm\Tests\Config\Plugin\FileTypeSelfRegisteringPlugin;
@@ -26,8 +25,6 @@
 use Psalm\Tests\TestConfig;
 
 use function array_map;
-use function define;
-use function defined;
 use function dirname;
 use function error_get_last;
 use function get_class;
@@ -56,15 +53,13 @@ class ConfigTest extends TestCase
 
     public static function setUpBeforeClass(): void
     {
-        self::$config = new TestConfig();
+        parent::setUpBeforeClass();
 
-        if (!defined('PSALM_VERSION')) {
-            define('PSALM_VERSION', VersionUtils::getPsalmVersion());
-        }
+        // hack to isolate Psalm from PHPUnit cli arguments
+        global $argv;
+        $argv = [];
 
-        if (!defined('PHP_PARSER_VERSION')) {
-            define('PHP_PARSER_VERSION', VersionUtils::getPhpParserVersion());
-        }
+        self::$config = new TestConfig();
     }
 
     public function setUp(): void
@@ -1334,10 +1329,6 @@ function handleThrow(I $e) : void {
 
     public function testModularConfig(): void
     {
-        // hack to isolate Psalm from PHPUnit arguments
-        global $argv;
-        $argv = [];
-
         $root = __DIR__ . '/../fixtures/ModularConfig';
         $config = Config::loadFromXMLFile($root . '/psalm.xml', $root);
         $this->assertEquals(
diff --git a/tests/Config/PluginTest.php b/tests/Config/PluginTest.php
index 9c3297633f6..6f430888f77 100644
--- a/tests/Config/PluginTest.php
+++ b/tests/Config/PluginTest.php
@@ -12,7 +12,6 @@
 use Psalm\Internal\Provider\FakeFileProvider;
 use Psalm\Internal\Provider\Providers;
 use Psalm\Internal\RuntimeCaches;
-use Psalm\Internal\VersionUtils;
 use Psalm\IssueBuffer;
 use Psalm\Plugin\EventHandler\AfterCodebasePopulatedInterface;
 use Psalm\Plugin\EventHandler\AfterEveryFunctionCallAnalysisInterface;
@@ -26,8 +25,6 @@
 use Psalm\Tests\TestConfig;
 use stdClass;
 
-use function define;
-use function defined;
 use function dirname;
 use function get_class;
 use function getcwd;
@@ -44,19 +41,13 @@ class PluginTest extends TestCase
 
     public static function setUpBeforeClass(): void
     {
+        parent::setUpBeforeClass();
+
         // hack to isolate Psalm from PHPUnit cli arguments
         global $argv;
         $argv = [];
 
         self::$config = new TestConfig();
-
-        if (!defined('PSALM_VERSION')) {
-            define('PSALM_VERSION', VersionUtils::getPsalmVersion());
-        }
-
-        if (!defined('PHP_PARSER_VERSION')) {
-            define('PHP_PARSER_VERSION', VersionUtils::getPhpParserVersion());
-        }
     }
 
     public function setUp(): void
diff --git a/tests/ForbiddenCodeTest.php b/tests/ForbiddenCodeTest.php
index a841f65fcf3..bae5147beb5 100644
--- a/tests/ForbiddenCodeTest.php
+++ b/tests/ForbiddenCodeTest.php
@@ -19,6 +19,15 @@ class ForbiddenCodeTest extends TestCase
     use InvalidCodeAnalysisTestTrait;
     use ValidCodeAnalysisTestTrait;
 
+    public static function setUpBeforeClass(): void
+    {
+        parent::setUpBeforeClass();
+
+        // hack to isolate Psalm from PHPUnit cli arguments
+        global $argv;
+        $argv = [];
+    }
+
     public function providerInvalidCodeParse(): iterable
     {
         return [
diff --git a/tests/ProjectCheckerTest.php b/tests/ProjectCheckerTest.php
index da8f75fe0c2..f1909539abf 100644
--- a/tests/ProjectCheckerTest.php
+++ b/tests/ProjectCheckerTest.php
@@ -8,7 +8,6 @@
 use Psalm\Internal\Provider\FakeFileProvider;
 use Psalm\Internal\Provider\Providers;
 use Psalm\Internal\RuntimeCaches;
-use Psalm\Internal\VersionUtils;
 use Psalm\IssueBuffer;
 use Psalm\Plugin\EventHandler\AfterCodebasePopulatedInterface;
 use Psalm\Plugin\EventHandler\Event\AfterCodebasePopulatedEvent;
@@ -21,8 +20,6 @@
 use Psalm\Tests\Internal\Provider\ProjectCacheProvider;
 use Psalm\Tests\Progress\EchoProgress;
 
-use function define;
-use function defined;
 use function get_class;
 use function getcwd;
 use function microtime;
@@ -41,19 +38,13 @@ class ProjectCheckerTest extends TestCase
 
     public static function setUpBeforeClass(): void
     {
+        parent::setUpBeforeClass();
+
         // hack to stop Psalm seeing the phpunit arguments
         global $argv;
         $argv = [];
 
         self::$config = new TestConfig();
-
-        if (!defined('PSALM_VERSION')) {
-            define('PSALM_VERSION', VersionUtils::getPsalmVersion());
-        }
-
-        if (!defined('PHP_PARSER_VERSION')) {
-            define('PHP_PARSER_VERSION', VersionUtils::getPhpParserVersion());
-        }
     }
 
     public function setUp(): void
diff --git a/tests/StubTest.php b/tests/StubTest.php
index 1e297daf976..93de365fe3a 100644
--- a/tests/StubTest.php
+++ b/tests/StubTest.php
@@ -13,11 +13,8 @@
 use Psalm\Internal\Provider\FakeFileProvider;
 use Psalm\Internal\Provider\Providers;
 use Psalm\Internal\RuntimeCaches;
-use Psalm\Internal\VersionUtils;
 use Psalm\Tests\Internal\Provider\FakeParserCacheProvider;
 
-use function define;
-use function defined;
 use function dirname;
 use function explode;
 use function getcwd;
@@ -35,15 +32,13 @@ class StubTest extends TestCase
 
     public static function setUpBeforeClass(): void
     {
-        self::$config = new TestConfig();
+        parent::setUpBeforeClass();
 
-        if (!defined('PSALM_VERSION')) {
-            define('PSALM_VERSION', VersionUtils::getPsalmVersion());
-        }
+        // hack to isolate Psalm from PHPUnit cli arguments
+        global $argv;
+        $argv = [];
 
-        if (!defined('PHP_PARSER_VERSION')) {
-            define('PHP_PARSER_VERSION', VersionUtils::getPhpParserVersion());
-        }
+        self::$config = new TestConfig();
     }
 
     public function setUp(): void
diff --git a/tests/VariadicTest.php b/tests/VariadicTest.php
index e77b0a142bb..8e543612b00 100644
--- a/tests/VariadicTest.php
+++ b/tests/VariadicTest.php
@@ -19,6 +19,15 @@ class VariadicTest extends TestCase
 {
     use ValidCodeAnalysisTestTrait;
 
+    public static function setUpBeforeClass(): void
+    {
+        parent::setUpBeforeClass();
+
+        // hack to isolate Psalm from PHPUnit cli arguments
+        global $argv;
+        $argv = [];
+    }
+
     public function testVariadicArrayBadParam(): void
     {
         $this->expectExceptionMessage('InvalidScalarArgument');