diff --git a/CHANGELOG.md b/CHANGELOG.md
index 03ed6faf6..edd366300 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ All notable changes to this project will be documented in this file.
 ### Fix
  - Archive, restore and delete polls in poll list was missing, braught the options back to the action menu
  - fix a situation, where votes of a non existing poll are requested
+ - Fix getting group members
 ### New
  - Added an endpoint to the Api to be able to fetch the acl of a poll
 ## [7.0.2] - 2024-03-29
diff --git a/lib/Model/Group/Group.php b/lib/Model/Group/Group.php
index ed2f7c976..cc373012a 100644
--- a/lib/Model/Group/Group.php
+++ b/lib/Model/Group/Group.php
@@ -49,7 +49,7 @@ class Group extends UserBase {
 	}
 
 	private function setUp(): void {
-		$this->group = Container::queryClass(IGroupManager::class)->get($this->id);
+		$this->group = $this->groupManager->get($this->id);
 		$this->displayName = $this->group->getDisplayName();
 	}
 
@@ -58,10 +58,10 @@ class Group extends UserBase {
 	 */
 	public function getMembers(): array {
 		$members = [];
-		$usersInGroup = Container::queryClass(IGroupManager::class)->displayNamesInGroup($this->id);
+		$usersIdsInGroup = array_keys($this->groupManager->displayNamesInGroup($this->id));
 
-		foreach ($usersInGroup as $user) {
-			$newMember = new User((string) key($user));
+		foreach ($usersIdsInGroup as $userId) {
+			$newMember = new User($userId);
 
 			if ($newMember->IsEnabled()) {
 				$members[] = $newMember;