diff --git a/index.js b/index.js
index 48dacc0..21c124c 100644
--- a/index.js
+++ b/index.js
@@ -30,8 +30,6 @@ module.exports = {
     )
   },
 
-  sleep: (ms) => new Promise((resolve, reject) => setTimeout(resolve, ms)),
-
   async request({ method = 'POST', url, header = {}, data = {} }) {
     url = this.makeUrl(url)
     header._passtoken = uni.getStorageSync('_passtoken')