diff --git a/README.md b/README.md
index 45b2dbf..f0bc53c 100644
--- a/README.md
+++ b/README.md
@@ -138,9 +138,9 @@ class MyUserEntity implements MutationAwareInterface
     }
 
     #[\Override]
-    public function getMutations(): array
+    public function getMutations(): iterable
     {
-        return $this->mutations->toArray();
+        return $this->mutations;
     }
 
     /**
diff --git a/src/MutationAwareInterface.php b/src/MutationAwareInterface.php
index e55e1aa..fb6dcb5 100644
--- a/src/MutationAwareInterface.php
+++ b/src/MutationAwareInterface.php
@@ -11,9 +11,9 @@ interface MutationAwareInterface
     public function addMutation(object $mutation): void;
 
     /**
-     * @return object[]
+     * @return iterable<object>
      */
-    public function getMutations(): array;
+    public function getMutations(): iterable;
 
     public function getPreviousMutation(): ?object;
 }