diff --git a/packages/api/src/elastic/types.ts b/packages/api/src/elastic/types.ts
index 550c02584..64781f93a 100644
--- a/packages/api/src/elastic/types.ts
+++ b/packages/api/src/elastic/types.ts
@@ -224,6 +224,7 @@ export interface SearchItem {
   userId: string
   state?: ArticleSavingRequestStatus
   language?: string
+  readAt?: Date
 }
 
 const keys = ['_id', 'url', 'slug', 'userId', 'uploadFileId', 'state'] as const