diff --git a/packages/backend/src/server/api/SigninApiService.ts b/packages/backend/src/server/api/SigninApiService.ts
index 06b7b107bc..64af7da7a6 100644
--- a/packages/backend/src/server/api/SigninApiService.ts
+++ b/packages/backend/src/server/api/SigninApiService.ts
@@ -21,7 +21,6 @@ import { IdService } from '@/core/IdService.js';
 import { bindThis } from '@/decorators.js';
 import { WebAuthnService } from '@/core/WebAuthnService.js';
 import { UserAuthService } from '@/core/UserAuthService.js';
-import { MetaService } from '@/core/MetaService.js';
 import { RateLimiterService } from './RateLimiterService.js';
 import { SigninService } from './SigninService.js';
 import type { AuthenticationResponseJSON } from '@simplewebauthn/types';
@@ -52,7 +51,6 @@ export class SigninApiService {
 		private signinService: SigninService,
 		private userAuthService: UserAuthService,
 		private webAuthnService: WebAuthnService,
-		private metaService: MetaService,
 	) {
 	}
 
diff --git a/packages/backend/src/server/api/endpoints/i/claim-achievement.ts b/packages/backend/src/server/api/endpoints/i/claim-achievement.ts
index c642b05f5f..603df44733 100644
--- a/packages/backend/src/server/api/endpoints/i/claim-achievement.ts
+++ b/packages/backend/src/server/api/endpoints/i/claim-achievement.ts
@@ -4,7 +4,7 @@
  */
 
 import { DI } from '@/di-symbols.js';
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { AchievementService, ACHIEVEMENT_TYPES } from '@/core/AchievementService.js';
 import type { MiMeta } from '@/models/_.js';
diff --git a/packages/backend/src/server/api/endpoints/notes/like.ts b/packages/backend/src/server/api/endpoints/notes/like.ts
index 55ea0b7a29..593463aea0 100644
--- a/packages/backend/src/server/api/endpoints/notes/like.ts
+++ b/packages/backend/src/server/api/endpoints/notes/like.ts
@@ -1,5 +1,5 @@
 import { DI } from '@/di-symbols.js';
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import { Endpoint } from '@/server/api/endpoint-base.js';
 import { GetterService } from '@/server/api/GetterService.js';
 import { ReactionService } from '@/core/ReactionService.js';
diff --git a/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts b/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts
index 8101a205a6..e01b09fb57 100644
--- a/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts
+++ b/packages/backend/src/server/api/endpoints/notes/search-by-tag.ts
@@ -12,7 +12,6 @@ import { Endpoint } from '@/server/api/endpoint-base.js';
 import { QueryService } from '@/core/QueryService.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { DI } from '@/di-symbols.js';
-import { MetaService } from '@/core/MetaService.js';
 import { CacheService } from '@/core/CacheService.js';
 import { UtilityService } from '@/core/UtilityService.js';
 
@@ -77,7 +76,6 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 
 		private noteEntityService: NoteEntityService,
 		private queryService: QueryService,
-		private metaService: MetaService,
 		private cacheService: CacheService,
 		private utilityService: UtilityService,
 	) {
diff --git a/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts b/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
index 6577d5ba1b..b40e4cdaa4 100644
--- a/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
+++ b/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
@@ -44,7 +44,6 @@ export class MastodonApiServerService {
 		private accessTokensRepository: AccessTokensRepository,
         @Inject(DI.config)
         private config: Config,
-        private metaService: MetaService,
 		private userEntityService: UserEntityService,
 		private driveService: DriveService,
 		private mastoConverter: MastoConverters,
diff --git a/packages/backend/src/server/api/stream/channels/bubble-timeline.ts b/packages/backend/src/server/api/stream/channels/bubble-timeline.ts
index 9d65b0a11a..48c8535b83 100644
--- a/packages/backend/src/server/api/stream/channels/bubble-timeline.ts
+++ b/packages/backend/src/server/api/stream/channels/bubble-timeline.ts
@@ -3,7 +3,7 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { Injectable } from '@nestjs/common';
+import { Inject, Injectable } from '@nestjs/common';
 import { DI } from '@/di-symbols.js';
 import type { MiMeta } from '@/models/_.js';
 import type { Packed } from '@/misc/json-schema.js';