diff --git a/packages/backend/src/core/activitypub/models/ApPersonService.ts b/packages/backend/src/core/activitypub/models/ApPersonService.ts
index 4832cbc653..dde5762f53 100644
--- a/packages/backend/src/core/activitypub/models/ApPersonService.ts
+++ b/packages/backend/src/core/activitypub/models/ApPersonService.ts
@@ -54,7 +54,6 @@ import type { ApLoggerService } from '../ApLoggerService.js';
 
 import type { ApImageService } from './ApImageService.js';
 import type { IActor, ICollection, IObject, IOrderedCollection } from '../type.js';
-import { isArray } from 'util';
 
 const nameLength = 128;
 const summaryLength = 2048;