diff --git a/packages/backend/test/e2e/users.ts b/packages/backend/test/e2e/users.ts
index f5e1234c5..89d48158e 100644
--- a/packages/backend/test/e2e/users.ts
+++ b/packages/backend/test/e2e/users.ts
@@ -529,14 +529,14 @@ describe('ユーザー', () => {
 
 	test('を書き換えることができる(Background)', async () => {
 		const aliceFile = (await uploadFile(alice)).body;
-		const parameters = { bannerId: aliceFile.id };
+		const parameters = { bannerId: aliceFile!.id };
 		const response = await successfulApiCall({ endpoint: 'i/update', parameters: parameters, user: alice });
 		assert.match(response.backgroundUrl ?? '.', /^[-a-zA-Z0-9@:%._\+~#&?=\/]+$/);
 		assert.match(response.backgroundBlurhash ?? '.', /[ -~]{54}/);
 		const expected = {
 			...meDetailed(alice, true),
-			backgroundId: aliceFile.id,
-			backgroundBlurhash: response.baackgroundBlurhash,
+			backgroundId: aliceFile!.id,
+			backgroundBlurhash: response.backgroundBlurhash,
 			backgroundUrl: response.backgroundUrl,
 		};
 		assert.deepStrictEqual(response, expected, inspect(parameters));
@@ -639,10 +639,8 @@ describe('ユーザー', () => {
 	});
 	test.each([
 		{ label: 'Administratorになっている', user: () => userAdmin, me: () => userAdmin, selector: (user: misskey.entities.MeDetailed) => user.isAdmin },
-		// @ts-expect-error UserDetailedNotMe doesn't include isAdmin
 		{ label: '自分以外から見たときはAdministratorか判定できない', user: () => userAdmin, selector: (user: misskey.entities.UserDetailedNotMe) => user.isAdmin, expected: () => undefined },
 		{ label: 'Moderatorになっている', user: () => userModerator, me: () => userModerator, selector: (user: misskey.entities.MeDetailed) => user.isModerator },
-		// @ts-expect-error UserDetailedNotMe doesn't include isModerator
 		{ label: '自分以外から見たときはModeratorか判定できない', user: () => userModerator, selector: (user: misskey.entities.UserDetailedNotMe) => user.isModerator, expected: () => undefined },
 		{ label: 'サイレンスになっている', user: () => userSilenced, selector: (user: misskey.entities.UserDetailed) => user.isSilenced },
 		// FIXME: 落ちる
diff --git a/packages/backend/test/unit/FileInfoService.ts b/packages/backend/test/unit/FileInfoService.ts
index e298ce505..bfe7143aa 100644
--- a/packages/backend/test/unit/FileInfoService.ts
+++ b/packages/backend/test/unit/FileInfoService.ts
@@ -322,7 +322,7 @@ describe('FileInfoService', () => {
 
 		test('MPEG-4 AUDIO (M4A)', async () => {
 			const path = `${resources}/kick_gaba7.m4a`;
-			const info = await fileInfoService.getFileInfo(path, { skipSensitiveDetection: true }) as any;
+			const info = await fileInfoService.getFileInfo(path) as any;
 			delete info.warnings;
 			delete info.blurhash;
 			delete info.sensitive;