diff --git a/lib/private/Group/Manager.php b/lib/private/Group/Manager.php
index a060576742866..6b57897ee7998 100644
--- a/lib/private/Group/Manager.php
+++ b/lib/private/Group/Manager.php
@@ -63,14 +63,14 @@ public function __construct(
 	) {
 		$this->displayNameCache = new DisplayNameCache($cacheFactory, $this);
 
-		$this->listen('\OC\Group', 'postDelete', function (IGroup $group): void {
+		$this->listen('\OC\Group', 'preDelete', function (IGroup $group): void {
 			unset($this->cachedGroups[$group->getGID()]);
 			$this->cachedUserGroups = [];
 		});
-		$this->listen('\OC\Group', 'postAddUser', function (IGroup $group): void {
+		$this->listen('\OC\Group', 'preAddUser', function (IGroup $group): void {
 			$this->cachedUserGroups = [];
 		});
-		$this->listen('\OC\Group', 'postRemoveUser', function (IGroup $group): void {
+		$this->listen('\OC\Group', 'preRemoveUser', function (IGroup $group): void {
 			$this->cachedUserGroups = [];
 		});
 	}