diff --git a/index.js b/index.js
index 7e4d829..2a6df91 100644
--- a/index.js
+++ b/index.js
@@ -21,10 +21,7 @@ class Stats {
   }
 }
 
-const VERSION = +process.versions.node
-  .split('.')
-  .slice(0, 2)
-  .join('.')
+const VERSION = +process.versions.node.split('.').slice(0, 2).join('.')
 
 const EMPTY_STAT = new Stats()
 
@@ -201,16 +198,16 @@ const Iofs = {
    */
   rm(origin, debug) {
     try {
-      if (this.isdir(origin)) {
-        if (VERSION > 12.1) {
-          FS.rmdirSync(origin, { recursive: true })
-        } else {
+      if (VERSION >= 14.14) {
+        FS.rmSync(origin, { recursive: true })
+      } else {
+        if (this.isdir(origin)) {
           var list = this.ls(origin)
           list.forEach(it => this.rm(it))
           FS.rmdirSync(origin)
+        } else {
+          FS.unlinkSync(origin)
         }
-      } else {
-        FS.unlinkSync(origin)
       }
       return true
     } catch (err) {
diff --git a/index.mjs b/index.mjs
index 2e3e0b5..f88e507 100644
--- a/index.mjs
+++ b/index.mjs
@@ -21,10 +21,7 @@ class STATS {
   }
 }
 
-const VERSION = +process.versions.node
-  .split('.')
-  .slice(0, 2)
-  .join('.')
+const VERSION = +process.versions.node.split('.').slice(0, 2).join('.')
 
 const EMPTY_STAT = new STATS()
 
@@ -201,16 +198,16 @@ export default {
    */
   rm(origin, debug) {
     try {
-      if (this.isdir(origin)) {
-        if (VERSION > 12.1) {
-          FS.rmdirSync(origin, { recursive: true })
-        } else {
+      if (VERSION >= 14.14) {
+        FS.rmSync(origin, { recursive: true })
+      } else {
+        if (this.isdir(origin)) {
           var list = this.ls(origin)
           list.forEach(it => this.rm(it))
           FS.rmdirSync(origin)
+        } else {
+          FS.unlinkSync(origin)
         }
-      } else {
-        FS.unlinkSync(origin)
       }
       return true
     } catch (err) {
diff --git a/package.json b/package.json
index b0791d7..7d2a721 100644
--- a/package.json
+++ b/package.json
@@ -1,13 +1,23 @@
 {
   "name": "iofs",
-  "version": "1.5.2",
+  "version": "1.5.3",
   "description": "iofs是一个基于原生fs模块封装的工具, 旨在提供更加方便实用一些常用的API方法(同步), API习惯参考了bash shell。",
   "main": "index.js",
+  "exports": {
+    "require": "./index.js",
+    "import": "./index.mjs"
+  },
   "repository": {
     "type": "git",
     "url": "https://github.com/bytedo/iofs.git"
   },
-  "keywords": ["fivejs", "fs", "iofs", "fs.io", "file"],
+  "keywords": [
+    "fivejs",
+    "fs",
+    "iofs",
+    "fs.io",
+    "file"
+  ],
   "author": "yutent",
   "license": "MIT"
 }