diff --git a/lib/Doctrine/ORM/Query/ParserResult.php b/lib/Doctrine/ORM/Query/ParserResult.php
index 0f685a054fd..e16b5ebc351 100644
--- a/lib/Doctrine/ORM/Query/ParserResult.php
+++ b/lib/Doctrine/ORM/Query/ParserResult.php
@@ -6,6 +6,8 @@
 
 use Doctrine\ORM\Query\Exec\AbstractSqlExecutor;
 
+use function sprintf;
+
 /**
  * Encapsulates the resulting components from a DQL query parsing process that
  * can be serialized.
@@ -14,6 +16,12 @@
  */
 class ParserResult
 {
+    private const LEGACY_PROPERTY_MAPPING = [
+        'sqlExecutor' => '_sqlExecutor',
+        'resultSetMapping' => '_resultSetMapping',
+        'parameterMappings' => '_parameterMappings',
+    ];
+
     /**
      * The SQL executor used for executing the SQL.
      *
@@ -122,4 +130,20 @@ public function getSqlParameterPositions($dqlPosition)
     {
         return $this->parameterMappings[$dqlPosition];
     }
+
+    public function __wakeup(): void
+    {
+        $this->__unserialize((array) $this);
+    }
+
+    /** @param array<string, mixed> $data */
+    public function __unserialize(array $data): void
+    {
+        foreach (self::LEGACY_PROPERTY_MAPPING as $property => $legacyProperty) {
+            $this->$property = $data[sprintf("\0%s\0%s", self::class, $legacyProperty)]
+                ?? $data[sprintf("\0%s\0%s", self::class, $property)]
+                ?? $this->$property
+                ?? null;
+        }
+    }
 }
diff --git a/tests/Doctrine/Tests/ORM/Functional/ParserResultSerializationTest.php b/tests/Doctrine/Tests/ORM/Functional/ParserResultSerializationTest.php
new file mode 100644
index 00000000000..f5718715e2a
--- /dev/null
+++ b/tests/Doctrine/Tests/ORM/Functional/ParserResultSerializationTest.php
@@ -0,0 +1,70 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional;
+
+use Doctrine\ORM\Query;
+use Doctrine\ORM\Query\Exec\SingleSelectExecutor;
+use Doctrine\ORM\Query\ParserResult;
+use Doctrine\ORM\Query\ResultSetMapping;
+use Doctrine\Tests\OrmFunctionalTestCase;
+use Generator;
+use ReflectionMethod;
+
+use function file_get_contents;
+use function serialize;
+use function unserialize;
+
+class ParserResultSerializationTest extends OrmFunctionalTestCase
+{
+    protected function setUp(): void
+    {
+        $this->useModelSet('company');
+
+        parent::setUp();
+    }
+
+    public function testSerializeParserResult(): void
+    {
+        $query = $this->_em
+            ->createQuery('SELECT u FROM Doctrine\Tests\Models\Company\CompanyEmployee u WHERE u.name = :name');
+
+        $parserResult = self::parseQuery($query);
+        $serialized   = serialize($parserResult);
+        $unserialized = unserialize($serialized);
+
+        $this->assertInstanceOf(ParserResult::class, $unserialized);
+        $this->assertInstanceOf(ResultSetMapping::class, $unserialized->getResultSetMapping());
+        $this->assertEquals(['name' => [0]], $unserialized->getParameterMappings());
+        $this->assertInstanceOf(SingleSelectExecutor::class, $unserialized->getSqlExecutor());
+    }
+
+    /**
+     * @dataProvider provideSerializedSingleSelectResults
+     */
+    public function testUnserializeSingleSelectResult(string $serialized): void
+    {
+        $unserialized = unserialize($serialized);
+
+        $this->assertInstanceOf(ParserResult::class, $unserialized);
+        $this->assertInstanceOf(ResultSetMapping::class, $unserialized->getResultSetMapping());
+        $this->assertEquals(['name' => [0]], $unserialized->getParameterMappings());
+        $this->assertInstanceOf(SingleSelectExecutor::class, $unserialized->getSqlExecutor());
+    }
+
+    /** @return Generator<string, array{string}> */
+    public static function provideSerializedSingleSelectResults(): Generator
+    {
+        yield '2.14.3' => [file_get_contents(__DIR__ . '/ParserResults/single_select_2_14_3.txt')];
+        yield '2.15.0' => [file_get_contents(__DIR__ . '/ParserResults/single_select_2_15_0.txt')];
+    }
+
+    private static function parseQuery(Query $query): ParserResult
+    {
+        $r = new ReflectionMethod($query, 'parse');
+        $r->setAccessible(true);
+
+        return $r->invoke($query);
+    }
+}
diff --git a/tests/Doctrine/Tests/ORM/Functional/ParserResults/single_select_2_14_3.txt b/tests/Doctrine/Tests/ORM/Functional/ParserResults/single_select_2_14_3.txt
new file mode 100644
index 00000000000..db83fe2de48
Binary files /dev/null and b/tests/Doctrine/Tests/ORM/Functional/ParserResults/single_select_2_14_3.txt differ
diff --git a/tests/Doctrine/Tests/ORM/Functional/ParserResults/single_select_2_15_0.txt b/tests/Doctrine/Tests/ORM/Functional/ParserResults/single_select_2_15_0.txt
new file mode 100644
index 00000000000..2c306211b86
Binary files /dev/null and b/tests/Doctrine/Tests/ORM/Functional/ParserResults/single_select_2_15_0.txt differ