diff --git a/src/Collection/ArrayList.php b/src/Collection/ArrayList.php
index 75323a6..3a70cad 100644
--- a/src/Collection/ArrayList.php
+++ b/src/Collection/ArrayList.php
@@ -532,14 +532,14 @@ final public function mapToDictionary(Closure $closure): array
      * @template TMapToGroupsValue
      *
      * @param  Closure(TValue, int): array<TMapToGroupsKey, TMapToGroupsValue> $closure
-     * @return array<TMapToGroupsKey, static<TMapToGroupsKey>>
+     * @return array<TMapToGroupsKey, IArrayList<TMapToGroupsValue>>
      */
     #[Override]
     final public function mapToGroups(Closure $closure): array
     {
         $groups = $this->mapToDictionary($closure);
 
-        return array_map(static fn ($items) => new static($items), $groups);
+        return array_map(static fn ($items) => new self($items), $groups);
     }
 
     #[Override]
diff --git a/src/Collection/List/IArrayList.php b/src/Collection/List/IArrayList.php
index 4c93354..c18c21b 100644
--- a/src/Collection/List/IArrayList.php
+++ b/src/Collection/List/IArrayList.php
@@ -220,7 +220,7 @@ public function mapToDictionary(Closure $closure): array;
      * @template TMapToGroupsValue
      *
      * @param  Closure(TValue, int): array<TMapToGroupsKey, TMapToGroupsValue> $closure
-     * @return array<TMapToGroupsKey, static<TMapToGroupsKey>>
+     * @return array<TMapToGroupsKey, IArrayList<TMapToGroupsValue>>
      */
     public function mapToGroups(Closure $closure): array;