diff --git a/packages/engine-chronocat-api/package.json b/packages/engine-chronocat-api/package.json
index 226fc29..a3b3b6c 100644
--- a/packages/engine-chronocat-api/package.json
+++ b/packages/engine-chronocat-api/package.json
@@ -25,7 +25,6 @@
     "concurrently": "^8.2.1",
     "esbuild-register": "^3.5.0",
     "ipcman": "^0.1.3",
-    "mime": "^4.0.4",
     "node-fetch": "^3.3.2",
     "ts-toolbelt": "^9.6.0",
     "typescript": "~5.1.0"
diff --git a/packages/engine-chronocat-api/src/common/file.ts b/packages/engine-chronocat-api/src/common/file.ts
index 073abca..78bb3ce 100644
--- a/packages/engine-chronocat-api/src/common/file.ts
+++ b/packages/engine-chronocat-api/src/common/file.ts
@@ -1,5 +1,4 @@
 import type { ChronocatContext } from '@chronocat/shell'
-import mime from 'mime/lite'
 import fetch from 'node-fetch'
 import { createReadStream, createWriteStream } from 'node:fs'
 import { copyFile, mkdir, unlink, writeFile } from 'node:fs/promises'
@@ -66,7 +65,7 @@ export const commonFile = async (
       // 从 Content-Type 获得 MIME
       fileMime ||= response.headers.get('Content-Type') || undefined
       if (fileMime && !fileName.includes('.')) {
-        const ext = mime.getExtension(fileMime)
+        const ext = ctx.chronocat.mime.getExtension(fileMime)
         fileName += ext ? '.' + ext : ''
       }
 
@@ -85,7 +84,7 @@ export const commonFile = async (
       if (capture) {
         fileMime ||= capture[1]!
         const base64 = capture[2]!
-        const ext = mime.getExtension(fileMime)
+        const ext = ctx.chronocat.mime.getExtension(fileMime)
         fileName ||= generateToken16() + (ext ? '.' + ext : '')
         filePath = await saveBuffer(
           ctx,
diff --git a/yarn.lock b/yarn.lock
index c1132ee..cc8320e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1783,7 +1783,6 @@ __metadata:
     concurrently: "npm:^8.2.1"
     esbuild-register: "npm:^3.5.0"
     ipcman: "npm:^0.1.3"
-    mime: "npm:^4.0.4"
     node-fetch: "npm:^3.3.2"
     ts-toolbelt: "npm:^9.6.0"
     typescript: "npm:~5.1.0"
@@ -1868,6 +1867,7 @@ __metadata:
     esbuild-register: "npm:^3.5.0"
     js-yaml: "npm:^4.1.0"
     logiri: "npm:^0.1.2"
+    mime: "npm:^4.0.4"
     node-fetch: "npm:^3.3.2"
     protobufjs: "npm:^7.2.5"
     ts-toolbelt: "npm:^9.6.0"