diff --git a/src/Internal/Iter/PipelineIterator.php b/src/Internal/Iter/PipelineIterator.php
index 1bf48a0..6c12a75 100644
--- a/src/Internal/Iter/PipelineIterator.php
+++ b/src/Internal/Iter/PipelineIterator.php
@@ -15,8 +15,9 @@
  * @internal
  * @template-covariant T
  * @template-implements Iterator<T>
+ * @template-implements \IteratorAggregate<mixed, T>
  */
-final class PipelineIterator implements Iterator
+final class PipelineIterator implements Iterator, \IteratorAggregate
 {
     /** @var ?Future<void> */
     private ?Future $complete = null;
diff --git a/src/Iterator.php b/src/Iterator.php
index c66baab..efb6cd0 100644
--- a/src/Iterator.php
+++ b/src/Iterator.php
@@ -9,9 +9,9 @@
 /**
  * @api
  * @template-covariant T
- * @template-extends \IteratorAggregate<T>
+ * @template-extends \Traversable<mixed, T>
  */
-interface Iterator extends \IteratorAggregate
+interface Iterator extends \Traversable
 {
     public function stop(?Cancellation $cancellation = null): void;