diff --git a/src/middleware/jwk/index.test.ts b/src/middleware/jwk/index.test.ts
index 1d502eeef..deec08fd9 100644
--- a/src/middleware/jwk/index.test.ts
+++ b/src/middleware/jwk/index.test.ts
@@ -3,13 +3,14 @@ import { setupServer } from 'msw/node'
 import { setSignedCookie } from '../../helper/cookie'
 import { Hono } from '../../hono'
 import { HTTPException } from '../../http-exception'
+import { encodeBase64Url } from '../../utils/encode'
 import { Jwt } from '../../utils/jwt'
+import type { HonoJsonWebKey } from '../../utils/jwt/jws'
+import { signing } from '../../utils/jwt/jws'
+import type { JWTPayload } from '../../utils/jwt/types'
+import { utf8Encoder } from '../../utils/jwt/utf8'
 import * as test_keys from './keys.test.json'
 import { jwk } from '.'
-import { encodeBase64Url } from '../../utils/encode'
-import { utf8Encoder } from '../../utils/jwt/utf8'
-import { JWTPayload } from '../../utils/jwt/types'
-import { HonoJsonWebKey, signing } from '../../utils/jwt/jws'
 
 const verify_keys = test_keys.public_keys
 
@@ -142,17 +143,26 @@ describe('JWK', () => {
     })
 
     it('Should not authorize a token with missing "kid" in header', async () => {
-      const encodeJwtPart = (part: unknown): string => encodeBase64Url(utf8Encoder.encode(JSON.stringify(part))).replace(/=/g, '')
-      const encodeSignaturePart = (buf: ArrayBufferLike): string => encodeBase64Url(buf).replace(/=/g, '')
+      const encodeJwtPart = (part: unknown): string =>
+        encodeBase64Url(utf8Encoder.encode(JSON.stringify(part))).replace(/=/g, '')
+      const encodeSignaturePart = (buf: ArrayBufferLike): string =>
+        encodeBase64Url(buf).replace(/=/g, '')
       const jwtSignWithoutKid = async (payload: JWTPayload, privateKey: HonoJsonWebKey) => {
         const encodedPayload = encodeJwtPart(payload)
-        let encodedHeader = encodeJwtPart({ alg: privateKey.alg, typ: 'JWT' })
+        const encodedHeader = encodeJwtPart({ alg: privateKey.alg, typ: 'JWT' })
         const partialToken = `${encodedHeader}.${encodedPayload}`
-        const signaturePart = await signing(privateKey, privateKey.alg as any, utf8Encoder.encode(partialToken))
+        const signaturePart = await signing(
+          privateKey,
+          privateKey.alg as any,
+          utf8Encoder.encode(partialToken)
+        )
         const signature = encodeSignaturePart(signaturePart)
         return `${partialToken}.${signature}`
       }
-      const credential = await jwtSignWithoutKid({ message: 'hello world' }, test_keys.private_keys[1])
+      const credential = await jwtSignWithoutKid(
+        { message: 'hello world' },
+        test_keys.private_keys[1]
+      )
       const req = new Request('http://localhost/auth-with-keys/a')
       req.headers.set('Authorization', `Bearer ${credential}`)
       const res = await app.request(req)