diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index e3bef56f5..da065a4ac 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -1,4 +1,4 @@
-import { Computed, Context, Logger, Quester, Schema, Service, remove } from 'koishi'
+import { Computed, Context, Logger, HTTP, Schema, Service, remove } from 'koishi'
 import LanguageDetect from 'languagedetect'
 
 import * as Command from './command'
@@ -67,7 +67,7 @@ class ImageService extends Service {
     for (const source of sources) {
       const tags = source.tokenize(query.query)
       const images = await source.get({ count: query.count, tags, raw: query.query }).catch((err) => {
-        if (Quester.Error.is(err)) {
+        if (HTTP.Error.is(err)) {
           logger.warn(
             [
               `source ${source.config.label} request failed`,
@@ -102,7 +102,7 @@ class ImageService extends Service {
     const resp = await this.ctx
       .http(url, { method: 'GET', responseType: 'arraybuffer', proxyAgent: '' })
       .catch((err) => {
-        if (Quester.Error.is(err)) {
+        if (HTTP.Error.is(err)) {
           logger.warn(
             `Request images failed with HTTP status ${err.response?.status}: ${JSON.stringify(err.response?.data)}.`,
           )
@@ -158,7 +158,7 @@ class ImageService extends Service {
         return `data:${resp.headers['content-type']};base64,${Buffer.from(resp.data).toString('base64')}`
       })
       .catch((err) => {
-        if (Quester.Error.is(err)) {
+        if (HTTP.Error.is(err)) {
           logger.warn(
             `Request images failed with HTTP status ${err.response?.status}: ${JSON.stringify(err.response?.data)}.`,
           )
diff --git a/packages/core/src/source.ts b/packages/core/src/source.ts
index 132f5f18b..29dc2ec9d 100644
--- a/packages/core/src/source.ts
+++ b/packages/core/src/source.ts
@@ -1,4 +1,4 @@
-import { Context, Element, Quester, Schema } from 'koishi'
+import { Context, Element, HTTP, Schema } from 'koishi'
 
 import type {} from '@cordisjs/plugin-proxy-agent'
 
@@ -8,7 +8,7 @@ export abstract class ImageSource<Config extends ImageSource.Config = ImageSourc
   languages: string[] = []
   source: string
 
-  http: Quester
+  http: HTTP
 
   constructor(
     public ctx: Context,
diff --git a/packages/pixiv/src/index.ts b/packages/pixiv/src/index.ts
index d54c34b88..4d668b3d1 100644
--- a/packages/pixiv/src/index.ts
+++ b/packages/pixiv/src/index.ts
@@ -5,7 +5,7 @@ import { ReadableStream } from 'node:stream/web'
 import {} from '@koishijs/assets'
 import {} from '@koishijs/plugin-server'
 
-import { Context, Quester, Random, Schema, trimSlash } from 'koishi'
+import { Context, HTTP, Random, Schema, trimSlash } from 'koishi'
 import { ImageSource } from 'koishi-plugin-booru'
 
 import { PixivAppApi } from './types'
@@ -105,7 +105,7 @@ class PixivImageSource extends ImageSource<PixivImageSource.Config> {
           }),
       )
     } catch (err) {
-      if (Quester.Error.is(err)) {
+      if (HTTP.Error.is(err)) {
         throw new Error('get pixiv image failed: ' + `${err.message} (${err.response?.status})`)
       } else {
         throw new Error('get pixiv image failed: ' + err)
@@ -180,7 +180,7 @@ class PixivImageSource extends ImageSource<PixivImageSource.Config> {
 
       return this.accessToken
     } catch (err) {
-      if (Quester.Error.is(err)) {
+      if (HTTP.Error.is(err)) {
         throw new Error('Login failed with status code ' + err.response?.status + '\n' + JSON.stringify(err.response))
       } else {
         throw new Error('Login failed with unknown error: ' + err.message)