diff --git a/lib/Migration/Version030500Date20260715083046.php b/lib/Migration/Version030500Date20260715083046.php
index 0777011e..d134e6af 100644
--- a/lib/Migration/Version030500Date20260715083046.php
+++ b/lib/Migration/Version030500Date20260715083046.php
@@ -78,7 +78,7 @@ public function postSchemaChange(IOutput $output, Closure $schemaClosure, array
 	}
 
 	/**
-	 * @return list<string>
+	 * @return array<int, mixed>
 	 */
 	private function getDistinctUserIds(): array {
 		$userIds = [];