diff --git a/index.js b/index.js
index 8b83e5c..3df3398 100644
--- a/index.js
+++ b/index.js
@@ -2,8 +2,8 @@ import { EventEmitter } from 'events'
 import util from './lib/util.js'
 import url from 'url'
 import _ from 'koa-route'
-import { HttpsProxyAgent } from 'https-proxy-agent'
-import { HttpProxyAgent } from 'http-proxy-agent'
+import HttpsProxyAgent from 'https-proxy-agent'
+import HttpProxyAgent from 'http-proxy-agent'
 import http from 'http'
 import https from 'https'