diff --git a/packages/backend/src/core/NotificationService.ts b/packages/backend/src/core/NotificationService.ts
index aa4e22f893..a3ce7d32a4 100644
--- a/packages/backend/src/core/NotificationService.ts
+++ b/packages/backend/src/core/NotificationService.ts
@@ -17,7 +17,7 @@ import { PushNotificationService } from '@/core/PushNotificationService.js';
 import { NotificationEntityService } from '@/core/entities/NotificationEntityService.js';
 import { IdService } from '@/core/IdService.js';
 import { CacheService } from '@/core/CacheService.js';
-import { Config } from '@/config.js';
+import type { Config } from '@/config.js';
 
 @Injectable()
 export class NotificationService implements OnApplicationShutdown {
diff --git a/packages/backend/test/unit/S3Service.ts b/packages/backend/test/unit/S3Service.ts
index eec8494322..94d8d83a0c 100644
--- a/packages/backend/test/unit/S3Service.ts
+++ b/packages/backend/test/unit/S3Service.ts
@@ -10,8 +10,8 @@ import { UploadPartCommand, CompleteMultipartUploadCommand, CreateMultipartUploa
 import { mockClient } from 'aws-sdk-client-mock';
 import { GlobalModule } from '@/GlobalModule.js';
 import { CoreModule } from '@/core/CoreModule.js';
-import { S3Service } from '@/core/S3Service';
-import { Meta } from '@/models';
+import { S3Service } from '@/core/S3Service.js';
+import { MiMeta } from '@/models/index.js';
 import type { TestingModule } from '@nestjs/testing';
 
 describe('S3Service', () => {
@@ -40,7 +40,7 @@ describe('S3Service', () => {
 		test('upload a file', async () => {
 			s3Mock.on(PutObjectCommand).resolves({});
 
-			await s3Service.upload({ objectStorageRegion: 'us-east-1' } as Meta, {
+			await s3Service.upload({ objectStorageRegion: 'us-east-1' } as MiMeta, {
 				Bucket: 'fake',
 				Key: 'fake',
 				Body: 'x',
@@ -52,7 +52,7 @@ describe('S3Service', () => {
 			s3Mock.on(UploadPartCommand).resolves({ ETag: '1' });
 			s3Mock.on(CompleteMultipartUploadCommand).resolves({ Bucket: 'fake', Key: 'fake' });
 
-			await s3Service.upload({} as Meta, {
+			await s3Service.upload({} as MiMeta, {
 				Bucket: 'fake',
 				Key: 'fake',
 				Body: 'x'.repeat(8 * 1024 * 1024 + 1), // デフォルトpartSizeにしている 8 * 1024 * 1024 を越えるサイズ
@@ -62,7 +62,7 @@ describe('S3Service', () => {
 		test('upload a file error', async () => {
 			s3Mock.on(PutObjectCommand).rejects({ name: 'Fake Error' });
 
-			await expect(s3Service.upload({ objectStorageRegion: 'us-east-1' } as Meta, {
+			await expect(s3Service.upload({ objectStorageRegion: 'us-east-1' } as MiMeta, {
 				Bucket: 'fake',
 				Key: 'fake',
 				Body: 'x',
@@ -72,7 +72,7 @@ describe('S3Service', () => {
 		test('upload a large file error', async () => {
 			s3Mock.on(UploadPartCommand).rejects();
 
-			await expect(s3Service.upload({} as Meta, {
+			await expect(s3Service.upload({} as MiMeta, {
 				Bucket: 'fake',
 				Key: 'fake',
 				Body: 'x'.repeat(8 * 1024 * 1024 + 1), // デフォルトpartSizeにしている 8 * 1024 * 1024 を越えるサイズ
diff --git a/packages/backend/test/unit/activitypub.ts b/packages/backend/test/unit/activitypub.ts
index 73209523b5..a6e8409e0f 100644
--- a/packages/backend/test/unit/activitypub.ts
+++ b/packages/backend/test/unit/activitypub.ts
@@ -18,11 +18,11 @@ import { CoreModule } from '@/core/CoreModule.js';
 import { FederatedInstanceService } from '@/core/FederatedInstanceService.js';
 import { LoggerService } from '@/core/LoggerService.js';
 import type { IActor, IApDocument, ICollection, IPost } from '@/core/activitypub/type.js';
-import { Meta, Note } from '@/models/index.js';
+import { MiMeta, MiNote } from '@/models/index.js';
 import { secureRndstr } from '@/misc/secure-rndstr.js';
 import { DownloadService } from '@/core/DownloadService.js';
 import { MetaService } from '@/core/MetaService.js';
-import type { RemoteUser } from '@/models/entities/User.js';
+import type { MiRemoteUser } from '@/models/entities/User.js';
 import { MockResolver } from '../misc/mock-resolver.js';
 
 const host = 'https://host1.test';
@@ -75,7 +75,7 @@ function createRandomFeaturedCollection(actor: NonTransientIActor, length: numbe
 async function createRandomRemoteUser(
 	resolver: MockResolver,
 	personService: ApPersonService,
-): Promise<RemoteUser> {
+): Promise<MiRemoteUser> {
 	const actor = createRandomActor();
 	resolver.register(actor.id, actor);
 
@@ -94,7 +94,7 @@ describe('ActivityPub', () => {
 		cacheRemoteSensitiveFiles: true,
 		blockedHosts: [] as string[],
 		sensitiveWords: [] as string[],
-	} as Meta;
+	} as MiMeta;
 	let meta = metaInitial;
 
 	beforeAll(async () => {
@@ -109,7 +109,7 @@ describe('ActivityPub', () => {
 				},
 			})
 			.overrideProvider(MetaService).useValue({
-				async fetch(): Promise<Meta> {
+				async fetch(): Promise<MiMeta> {
 					return meta;
 				},
 			}).compile();
@@ -199,7 +199,7 @@ describe('ActivityPub', () => {
 			rendererService.renderAnnounce(null, {
 				createdAt: new Date(0),
 				visibility: 'followers',
-			} as Note);
+			} as MiNote);
 		});
 	});
 
diff --git a/packages/backend/test/unit/chart.ts b/packages/backend/test/unit/chart.ts
index a419083e7d..036e73fd5e 100644
--- a/packages/backend/test/unit/chart.ts
+++ b/packages/backend/test/unit/chart.ts
@@ -18,7 +18,7 @@ import { entity as TestGroupedChartEntity } from '@/core/chart/charts/entities/t
 import { entity as TestUniqueChartEntity } from '@/core/chart/charts/entities/test-unique.js';
 import { entity as TestIntersectionChartEntity } from '@/core/chart/charts/entities/test-intersection.js';
 import { loadConfig } from '@/config.js';
-import type { AppLockService } from '@/core/AppLockService';
+import type { AppLockService } from '@/core/AppLockService.js';
 import Logger from '@/logger.js';
 
 describe('Chart', () => {
diff --git a/packages/backend/test/unit/misc/correct-filename.ts b/packages/backend/test/unit/misc/correct-filename.ts
index 8138b2361f..0c4482e0bf 100644
--- a/packages/backend/test/unit/misc/correct-filename.ts
+++ b/packages/backend/test/unit/misc/correct-filename.ts
@@ -6,42 +6,42 @@
 import { correctFilename } from '@/misc/correct-filename.js';
 
 describe(correctFilename, () => {
-    it('no ext to null', () => {
-        expect(correctFilename('test', null)).toBe('test.unknown');
-    });
-    it('no ext to jpg', () => {
-        expect(correctFilename('test', 'jpg')).toBe('test.jpg');
-    });
-    it('jpg to webp', () => {
-        expect(correctFilename('test.jpg', 'webp')).toBe('test.jpg.webp');
-    });
-    it('jpg to .webp', () => {
-        expect(correctFilename('test.jpg', '.webp')).toBe('test.jpg.webp');
-    });
-    it('jpeg to jpg', () => {
-        expect(correctFilename('test.jpeg', 'jpg')).toBe('test.jpeg');
-    });
-    it('JPEG to jpg', () => {
-        expect(correctFilename('test.JPEG', 'jpg')).toBe('test.JPEG');
-    });
-    it('jpg to jpg', () => {
-        expect(correctFilename('test.jpg', 'jpg')).toBe('test.jpg');
-    });
-    it('JPG to jpg', () => {
-        expect(correctFilename('test.JPG', 'jpg')).toBe('test.JPG');
-    });
-    it('tiff to tif', () => {
-        expect(correctFilename('test.tiff', 'tif')).toBe('test.tiff');
-    });
-    it('skip gz', () => {
-        expect(correctFilename('test.unitypackage', 'gz')).toBe('test.unitypackage');
-    });
-    it('skip text file', () => {
-        expect(correctFilename('test.txt', null)).toBe('test.txt');
-    });
-    it('unknown', () => {
-        expect(correctFilename('test.hoge', null)).toBe('test.hoge');
-    });
+	it('no ext to null', () => {
+		expect(correctFilename('test', null)).toBe('test.unknown');
+	});
+	it('no ext to jpg', () => {
+		expect(correctFilename('test', 'jpg')).toBe('test.jpg');
+	});
+	it('jpg to webp', () => {
+		expect(correctFilename('test.jpg', 'webp')).toBe('test.jpg.webp');
+	});
+	it('jpg to .webp', () => {
+		expect(correctFilename('test.jpg', '.webp')).toBe('test.jpg.webp');
+	});
+	it('jpeg to jpg', () => {
+		expect(correctFilename('test.jpeg', 'jpg')).toBe('test.jpeg');
+	});
+	it('JPEG to jpg', () => {
+		expect(correctFilename('test.JPEG', 'jpg')).toBe('test.JPEG');
+	});
+	it('jpg to jpg', () => {
+		expect(correctFilename('test.jpg', 'jpg')).toBe('test.jpg');
+	});
+	it('JPG to jpg', () => {
+		expect(correctFilename('test.JPG', 'jpg')).toBe('test.JPG');
+	});
+	it('tiff to tif', () => {
+		expect(correctFilename('test.tiff', 'tif')).toBe('test.tiff');
+	});
+	it('skip gz', () => {
+		expect(correctFilename('test.unitypackage', 'gz')).toBe('test.unitypackage');
+	});
+	it('skip text file', () => {
+		expect(correctFilename('test.txt', null)).toBe('test.txt');
+	});
+	it('unknown', () => {
+		expect(correctFilename('test.hoge', null)).toBe('test.hoge');
+	});
 	test('non ascii with space', () => {
 		expect(correctFilename('ファイル 名前', 'jpg')).toBe('ファイル 名前.jpg');
 	});
diff --git a/packages/backend/test/utils.ts b/packages/backend/test/utils.ts
index 0a24a47066..adc532bbe7 100644
--- a/packages/backend/test/utils.ts
+++ b/packages/backend/test/utils.ts
@@ -8,7 +8,7 @@ import { readFile } from 'node:fs/promises';
 import { isAbsolute, basename } from 'node:path';
 import { inspect } from 'node:util';
 import WebSocket, { ClientOptions } from 'ws';
-import fetch, { Blob, File, RequestInit } from 'node-fetch';
+import fetch, { File, RequestInit } from 'node-fetch';
 import { DataSource } from 'typeorm';
 import { JSDOM } from 'jsdom';
 import { DEFAULT_POLICIES } from '@/core/RoleService.js';