diff --git a/History.md b/History.md
index 1c02bcd..c2df364 100644
--- a/History.md
+++ b/History.md
@@ -1,3 +1,6 @@
+# 1.2.1 / 2019-08-06
+* [U] 写操作改回同步
+
 # 1.2.0 / 2019-07-16
 * [U] 优化结构
 * [U] 部分写操作改为异步
diff --git a/index.js b/index.js
index 393b08c..aede7f6 100644
--- a/index.js
+++ b/index.js
@@ -94,15 +94,15 @@ const Iofs = {
     }
 
     if (!!append) {
-      FS.appendFile(file, data, opt, ERROR_FN)
+      FS.appendFileSync(file, data, opt, ERROR_FN)
     } else {
-      FS.writeFile(file, data, opt, ERROR_FN)
+      FS.writeFileSync(file, data, opt, ERROR_FN)
     }
   },
 
   //修改权限
   chmod(path, mode) {
-    FS.chmod(path, mode, ERROR_FN)
+    FS.chmodSync(path, mode, ERROR_FN)
   },
 
   /**
@@ -152,9 +152,9 @@ const Iofs = {
       list.forEach(it => {
         this.rm(it, this.isdir(it))
       })
-      FS.rmdir(origin, ERROR_FN)
+      FS.rmdirSync(origin, ERROR_FN)
     } else {
-      FS.unlink(origin, ERROR_FN)
+      FS.unlinkSync(origin, ERROR_FN)
     }
   },
 
@@ -196,7 +196,7 @@ const Iofs = {
       this.mkdir(updir)
     }
 
-    FS.mkdir(dir, ERROR_FN)
+    FS.mkdirSync(dir, ERROR_FN)
   },
 
   /**
diff --git a/package.json b/package.json
index 071e473..65eedd7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "iofs",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "description": "Base on native fs module, for easy using.",
   "main": "index.js",
   "repository": {