diff --git a/tests/unit/Types/SelfTest.php b/tests/unit/Types/SelfTest.php
index b51b10f..ac7874b 100644
--- a/tests/unit/Types/SelfTest.php
+++ b/tests/unit/Types/SelfTest.php
@@ -38,7 +38,7 @@ public function testToString(string $expectedResult, Self_ $type): void
     }
 
     /**
-     * @return array<string, array{string, OffsetAccess}>
+     * @return array<string, array{string, Self_}>
      */
     public static function provideToStringData(): array
     {