diff --git a/example/ding-dong-bot.ts b/example/ding-dong-bot.ts
index c55d525d0a4bcdfaa6021b17f0896f81af5e5968..f7a4d4f3a6fc79cac689dc642e66ccaebca24836 100644
--- a/example/ding-dong-bot.ts
+++ b/example/ding-dong-bot.ts
@@ -73,15 +73,13 @@ bot
       m.say('dong')
       log.info('Bot', 'REPLY: dong')
 
-      m.say(`Join Wechaty Developers' Community
-
-            Wechaty is used in many ChatBot projects by hundreds of developers.
-            If you want to talk with other developers, just scan the following QR Code in WeChat with secret code: wechaty,
-            you can join our Wechaty Developers' Home at once.
-        `.replace(/  /, ' '),
-      )
+      const joinWechaty =  `Join Wechaty Developers' Community\n\n` +
+                            `Wechaty is used in many ChatBot projects by hundreds of developers.\n\n` +
+                            `If you want to talk with other developers, just scan the following QR Code in WeChat with secret code: wechaty,\n\n` +
+                            `you can join our Wechaty Developers' Home at once`
+      m.say(joinWechaty)
       m.say(new MediaMessage(__dirname + '/../image/BotQrcode.png'))
-      m.say('Scan now, because other Wechaty developers want to talk with you too! (secret code: wechaty)')
+      m.say('Scan now, because other Wechaty developers want to talk with you too!\n\n (secret code: wechaty)')
       log.info('Bot', 'REPLY: Image')
     }
   } catch (e) {
diff --git a/package.json b/package.json
index b1020b195befa7e9d5e56daa719b062fe70998fb..957a7dbc3bee7a6872d5e45eadb7406daed3df9f 100644
--- a/package.json
+++ b/package.json
@@ -104,7 +104,7 @@
     "node": ">= 6.9.0"
   },
   "dependencies": {
-    "@types/selenium-webdriver": "3.0.3",
+    "@types/selenium-webdriver": "3.0.4",
     "@types/socket.io": "1.4.29",
     "bl": "1.2.1",
     "body-parser": "1.17.1",
@@ -128,7 +128,7 @@
     "@types/mime": "0.0.29",
     "@types/node": "7.0.18",
     "@types/request": "0.0.43",
-    "@types/sinon": "2.2.1",
+    "@types/sinon": "2.2.2",
     "@types/ws": "0.0.41",
     "apiai": "4.0.2",
     "ava": "0.18.2",