diff --git a/tests/Config/ConfigTest.php b/tests/Config/ConfigTest.php
index 42e56630d..8da273e3d 100644
--- a/tests/Config/ConfigTest.php
+++ b/tests/Config/ConfigTest.php
@@ -33,7 +33,7 @@ class ConfigTest extends \Psalm\Tests\TestCase
         self::$config = new TestConfig();
 
         if (!defined('PSALM_VERSION')) {
-            define('PSALM_VERSION', '2.0.0');
+            define('PSALM_VERSION', '4.0.0');
         }
 
         if (!defined('PHP_PARSER_VERSION')) {
diff --git a/tests/Config/PluginTest.php b/tests/Config/PluginTest.php
index dab11d505..ca31a2522 100644
--- a/tests/Config/PluginTest.php
+++ b/tests/Config/PluginTest.php
@@ -43,7 +43,7 @@ class PluginTest extends \Psalm\Tests\TestCase
         self::$config = new TestConfig();
 
         if (!defined('PSALM_VERSION')) {
-            define('PSALM_VERSION', '2.0.0');
+            define('PSALM_VERSION', '4.0.0');
         }
 
         if (!defined('PHP_PARSER_VERSION')) {
diff --git a/tests/ProjectCheckerTest.php b/tests/ProjectCheckerTest.php
index 980536853..1e82d8cc1 100644
--- a/tests/ProjectCheckerTest.php
+++ b/tests/ProjectCheckerTest.php
@@ -32,7 +32,7 @@ class ProjectCheckerTest extends TestCase
         self::$config = new TestConfig();
 
         if (!defined('PSALM_VERSION')) {
-            define('PSALM_VERSION', '2.0.0');
+            define('PSALM_VERSION', '4.0.0');
         }
 
         if (!defined('PHP_PARSER_VERSION')) {
diff --git a/tests/ReportOutputTest.php b/tests/ReportOutputTest.php
index 7e09c61f8..8bf5219f2 100644
--- a/tests/ReportOutputTest.php
+++ b/tests/ReportOutputTest.php
@@ -100,7 +100,7 @@ echo "Successfully executed the command: " . $prefixedData;';
                         'driver' => [
                             'name' => 'Psalm',
                             'informationUri' => 'https://psalm.dev',
-                            'version' => '2.0.0',
+                            'version' => '4.0.0',
                             'rules' => [
                                 [
                                     'id' => '246',
diff --git a/tests/StubTest.php b/tests/StubTest.php
index 256adc6bd..adfe185f6 100644
--- a/tests/StubTest.php
+++ b/tests/StubTest.php
@@ -24,7 +24,7 @@ class StubTest extends TestCase
         self::$config = new TestConfig();
 
         if (!defined('PSALM_VERSION')) {
-            define('PSALM_VERSION', '2.0.0');
+            define('PSALM_VERSION', '4.0.0');
         }
 
         if (!defined('PHP_PARSER_VERSION')) {
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 2a1aea6b0..06239d3e7 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -32,7 +32,7 @@ class TestCase extends BaseTestCase
         ini_set('memory_limit', '-1');
 
         if (!defined('PSALM_VERSION')) {
-            define('PSALM_VERSION', '2.0.0');
+            define('PSALM_VERSION', '4.0.0');
         }
 
         if (!defined('PHP_PARSER_VERSION')) {