diff --git a/packages/backend/src/core/UserFollowingService.ts b/packages/backend/src/core/UserFollowingService.ts
index a50f19a47..c0347c60e 100644
--- a/packages/backend/src/core/UserFollowingService.ts
+++ b/packages/backend/src/core/UserFollowingService.ts
@@ -434,7 +434,7 @@ export class UserFollowingService {
 		followee: {
 			id: User['id']; host: User['host']; uri: User['host']; inbox: User['inbox']; sharedInbox: User['sharedInbox'];
 		},
-		follower: CacheableUser,
+		follower: User | CacheableUser,
 	): Promise<void> {
 		const request = await this.followRequestsRepository.findOneBy({
 			followeeId: followee.id,
diff --git a/packages/backend/src/core/activitypub/type.ts b/packages/backend/src/core/activitypub/type.ts
index b900e375b..9dc7ed4e3 100644
--- a/packages/backend/src/core/activitypub/type.ts
+++ b/packages/backend/src/core/activitypub/type.ts
@@ -14,7 +14,7 @@ export interface IObject {
 	attachment?: any[];
 	inReplyTo?: any;
 	replies?: ICollection;
-	content?: string;
+	content?: string | null;
 	startTime?: Date;
 	endTime?: Date;
 	icon?: any;