diff --git a/packages/bezier-icons/scripts/add-pr-description.js b/packages/bezier-icons/scripts/add-pr-description.js
index 770987739f..73fc2e3055 100644
--- a/packages/bezier-icons/scripts/add-pr-description.js
+++ b/packages/bezier-icons/scripts/add-pr-description.js
@@ -1,5 +1,5 @@
 /* eslint-disable no-console */
-import { getDescription } from './utils/getPrDescription'
+const { getDescription } = require('./utils/getPrDescription.js')
 
 const { exec } = require('child_process')
 
diff --git a/packages/bezier-icons/scripts/utils/generateIconFilesFromJson.js b/packages/bezier-icons/scripts/utils/generateIconFilesFromJson.js
new file mode 100644
index 0000000000..b49dd06664
--- /dev/null
+++ b/packages/bezier-icons/scripts/utils/generateIconFilesFromJson.js
@@ -0,0 +1,33 @@
+const fs = require('fs')
+const path = require('path')
+
+const flushAndMakeIconsDirectory = (dir) => {
+  if (fs.existsSync(dir)) {
+    fs.rmSync(dir, { recursive: true, force: true })
+    fs.mkdirSync(dir)
+  }
+}
+
+const makeSvgFiles = (dir) => ([iconName, svgObject]) => {
+  const svgPath = path.resolve(dir, `${iconName}.svg`)
+  const { svg } = svgObject
+
+  fs.writeFileSync(svgPath, svg, 'utf-8')
+}
+
+const generateSVGFilesFromMap = (iconsJson, dir) => {
+  const svgByName = JSON.parse(fs.readFileSync(iconsJson, 'utf-8'))
+
+  Object.entries(svgByName)
+    .forEach(makeSvgFiles(dir))
+}
+
+
+const generateIconFiles = (iconsJson, dir) => {
+  flushAndMakeIconsDirectory(dir)
+  generateSVGFilesFromMap(iconsJson, dir)
+}
+
+module.exports = {
+  generateIconFiles,
+}
diff --git a/packages/bezier-icons/scripts/utils/generateIconFilesFromJson.test.ts b/packages/bezier-icons/scripts/utils/generateIconFilesFromJson.test.js
similarity index 92%
rename from packages/bezier-icons/scripts/utils/generateIconFilesFromJson.test.ts
rename to packages/bezier-icons/scripts/utils/generateIconFilesFromJson.test.js
index 73cd87a05a..b9d0630a06 100644
--- a/packages/bezier-icons/scripts/utils/generateIconFilesFromJson.test.ts
+++ b/packages/bezier-icons/scripts/utils/generateIconFilesFromJson.test.js
@@ -1,13 +1,13 @@
-import fs from 'fs'
-import path from 'path'
+const fs = require('fs')
+const path = require('path')
 
-import { generateIconFiles } from './generateIconFilesFromJson'
+const { generateIconFiles } = require('./generateIconFilesFromJson')
 
 jest.mock('fs', () => ({
   existsSync: () => false,
   rmSync: () => {},
   mkdirSync: () => {},
-  readFileSync: (v: string) => v,
+  readFileSync: (v) => v,
   writeFileSync: jest.fn(),
 }))
 
diff --git a/packages/bezier-icons/scripts/utils/generateIconFilesFromJson.ts b/packages/bezier-icons/scripts/utils/generateIconFilesFromJson.ts
deleted file mode 100644
index 0fa5421dca..0000000000
--- a/packages/bezier-icons/scripts/utils/generateIconFilesFromJson.ts
+++ /dev/null
@@ -1,30 +0,0 @@
-import fs from 'fs'
-import path from 'path'
-
-type SvgObject = Record<string, string>
-
-const flushAndMakeIconsDirectory = (dir: string) => {
-  if (fs.existsSync(dir)) {
-    fs.rmSync(dir, { recursive: true, force: true })
-    fs.mkdirSync(dir)
-  }
-}
-
-const makeSvgFiles = (dir: string) => ([iconName, svgObject]: [string, SvgObject]) => {
-  const svgPath = path.resolve(dir, `${iconName}.svg`)
-  const { svg } = svgObject
-
-  fs.writeFileSync(svgPath, svg, 'utf-8')
-}
-
-const generateSVGFilesFromMap = (iconsJson: string, dir: string) => {
-  const svgByName: Record<string, SvgObject> = JSON.parse(fs.readFileSync(iconsJson, 'utf-8'))
-
-  Object.entries(svgByName)
-    .forEach(makeSvgFiles(dir))
-}
-
-export const generateIconFiles = (iconsJson: string, dir: string) => {
-  flushAndMakeIconsDirectory(dir)
-  generateSVGFilesFromMap(iconsJson, dir)
-}
diff --git a/packages/bezier-icons/scripts/utils/getPrDescription.ts b/packages/bezier-icons/scripts/utils/getPrDescription.js
similarity index 73%
rename from packages/bezier-icons/scripts/utils/getPrDescription.ts
rename to packages/bezier-icons/scripts/utils/getPrDescription.js
index d8327d42ea..83c69738b7 100644
--- a/packages/bezier-icons/scripts/utils/getPrDescription.ts
+++ b/packages/bezier-icons/scripts/utils/getPrDescription.js
@@ -1,20 +1,18 @@
-type IconsByStatus = Record<string, string[]>
-
-const statusByKey: Record<string, string> = {
+const statusByKey = {
   M: 'modified',
   A: 'added',
   D: 'deleted',
 }
 
-const emojiByKey: Record<string, string> = {
+const emojiByKey = {
   M: '✏️',
   A: '🆕',
   D: '🗑️',
 }
 
-const getIconName = (path: string) => path.split('/').at(-1)
+const getIconName = (path) => path.split('/').at(-1)
 
-const getSummary = (iconsByStatus: IconsByStatus) => {
+const getSummary = (iconsByStatus) => {
   let res = ''
 
   for (const [key, icons] of Object.entries(iconsByStatus)) {
@@ -24,7 +22,7 @@ const getSummary = (iconsByStatus: IconsByStatus) => {
   return res
 }
 
-const getTable = (iconsByStatus: IconsByStatus) => {
+const getTable = (iconsByStatus) => {
   let res = '| Name | Status |\n|--|--|\n'
 
   for (const [key, icons] of Object.entries(iconsByStatus)) {
@@ -36,7 +34,7 @@ const getTable = (iconsByStatus: IconsByStatus) => {
   return res
 }
 
-export const getDescription = (gitLog: string) => {
+const getDescription = (gitLog) => {
   let description = '### Icon update is ready to be merged! 🎉\n\n'
 
   const iconsByStatus = gitLog
@@ -56,7 +54,7 @@ export const getDescription = (gitLog: string) => {
         acc[key].push(icon)
       }
       return acc
-    }, {} as Record<string, string[]>)
+    }, {})
 
   description += getSummary(iconsByStatus)
   description += '\n'
@@ -64,3 +62,7 @@ export const getDescription = (gitLog: string) => {
 
   return description.trim()
 }
+
+module.exports = {
+  getDescription,
+}
diff --git a/packages/bezier-icons/scripts/utils/getPrDescription.test.ts b/packages/bezier-icons/scripts/utils/getPrDescription.test.js
similarity index 88%
rename from packages/bezier-icons/scripts/utils/getPrDescription.test.ts
rename to packages/bezier-icons/scripts/utils/getPrDescription.test.js
index 0f2425157c..ccd75f91ee 100644
--- a/packages/bezier-icons/scripts/utils/getPrDescription.test.ts
+++ b/packages/bezier-icons/scripts/utils/getPrDescription.test.js
@@ -1,4 +1,4 @@
-import { getDescription } from './getPrDescription'
+const { getDescription } = require('./getPrDescription.js/index.js')
 
 describe('getDescription function', () => {
   test('generates pr description from git log', () => {