diff --git a/src/functions/format.ts b/src/functions/format.ts
index 65c64e5..8a70539 100644
--- a/src/functions/format.ts
+++ b/src/functions/format.ts
@@ -1,7 +1,4 @@
-import { api } from '../services/misskey';
 import { config } from '../config';
-import { User } from '../models/entities/user';
-import { updateUser } from './users';
 import { Score } from '../types/Score';
 
 export const format = (score: Score): string => `昨日のMisskeyの活動は
diff --git a/src/functions/update-score.ts b/src/functions/update-score.ts
index 653500c..afdd32f 100644
--- a/src/functions/update-score.ts
+++ b/src/functions/update-score.ts
@@ -9,8 +9,8 @@ export const updateScore = async (user: User): Promise<void>  => {
 	}
                 
 	await updateUser(user.username, user.host, {
-		prevNotesCount: miUser.notesCount,
-		prevFollowingCount: miUser.followingCount,
-		prevFollowersCount: miUser.followersCount,
+		prevNotesCount: miUser.notesCount ?? 0,
+		prevFollowingCount: miUser.followingCount ?? 0,
+		prevFollowersCount: miUser.followersCount ?? 0,
 	});
 };
\ No newline at end of file