diff --git a/package.json b/package.json
index 173b49e..e60a2fe 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "crypto.js",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "description": "原生crypto加密模块的二次封装,简化常用加密函数的使用",
   "keywords": [
     "md5",
diff --git a/src/index.mjs b/src/index.mjs
index 3a0343a..51fd11e 100644
--- a/src/index.mjs
+++ b/src/index.mjs
@@ -89,11 +89,12 @@ export function uuid(pipe = '-') {
   var str = origin.randomUUID()
   var now = (~~(Date.now() / 1000)).toString(16)
 
-  __inc__++
   if (__inc__ > 65535) {
     __inc__ = 1
   }
-  str += __inc__.toString(16)
+
+  str = __inc__.toString(16) + str
+  __inc__++
 
   return now + pipe + MAC + pipe + str.slice(0, 4) + pipe + str.slice(-8)
 }