diff --git a/src/Datasets.php b/src/Datasets.php
index 8626332e..84b4ba72 100644
--- a/src/Datasets.php
+++ b/src/Datasets.php
@@ -51,7 +51,7 @@ final class Datasets
     /**
      * Resolves the current dataset to an array value.
      *
-     * @param Traversable<int, mixed>|Closure|iterable<int, mixed>|string|null $data
+     * @param Traversable<int|string, mixed>|Closure|iterable<int|string, mixed>|string|null $data
      *
      * @return array<string, mixed>
      */
diff --git a/src/Factories/TestCaseFactory.php b/src/Factories/TestCaseFactory.php
index 06a2a6fb..5b6c2167 100644
--- a/src/Factories/TestCaseFactory.php
+++ b/src/Factories/TestCaseFactory.php
@@ -59,7 +59,7 @@ final class TestCaseFactory
     /**
      * Holds the dataset, if any.
      *
-     * @var Closure|iterable<int, mixed>|string|null
+     * @var Closure|iterable<int|string, mixed>|string|null
      */
     public $dataset;
 
diff --git a/src/PendingObjects/TestCall.php b/src/PendingObjects/TestCall.php
index 73f30548..afbec8e8 100644
--- a/src/PendingObjects/TestCall.php
+++ b/src/PendingObjects/TestCall.php
@@ -78,7 +78,7 @@ final class TestCall
      * Runs the current test multiple times with
      * each item of the given `iterable`.
      *
-     * @param \Closure|iterable<int, mixed>|string $data
+     * @param \Closure|iterable<int|string, mixed>|string $data
      */
     public function with($data): TestCall
     {