diff --git a/lib/web/imageRouter/index.js b/lib/web/imageRouter/index.js
index ee123867c..07dedb083 100644
--- a/lib/web/imageRouter/index.js
+++ b/lib/web/imageRouter/index.js
@@ -3,7 +3,6 @@
 const Router = require('express').Router
 const formidable = require('formidable')
 const path = require('path')
-const FileType = require('file-type')
 const fs = require('fs')
 const os = require('os')
 const rimraf = require('rimraf')
@@ -17,7 +16,8 @@ const imageRouter = (module.exports = Router())
 
 async function checkUploadType (filePath) {
   const extension = path.extname(filePath).toLowerCase()
-  let typeFromMagic = await FileType.fromFile(filePath)
+  const FileType = await import('file-type')
+  let typeFromMagic = await FileType.fileTypeFromFile(filePath)
   if (extension === '.svg' && (typeFromMagic === undefined || typeFromMagic.mime === 'application/xml')) {
     const fileContent = fs.readFileSync(filePath)
     if (isSvg(fileContent)) {
diff --git a/package.json b/package.json
index cb4daaaa6..b213a258b 100644
--- a/package.json
+++ b/package.json
@@ -110,7 +110,7 @@
     "**/request": "^2.88.0"
   },
   "engines": {
-    "node": "12.x || 14.x || 16.x"
+    "node": "^12.20.0 || ^14.13.1 || 16.x"
   },
   "bugs": "https://github.com/hedgedoc/hedgedoc/issues",
   "keywords": [