diff --git a/build.sbt b/build.sbt
index f958a9aa..2d3bed67 100644
--- a/build.sbt
+++ b/build.sbt
@@ -46,7 +46,7 @@ libraryDependencies ++=
   "com.google.android.gms" % "play-services-gcm" % "10.0.1" ::
   "com.j256.ormlite" % "ormlite-android" % "5.0" ::
   "com.mikepenz" % "fastadapter" % "2.1.5" ::
-  "com.mikepenz" % "iconics-core" % "2.8.1" ::
+  "com.mikepenz" % "iconics-core" % "2.8.2" ::
   "com.mikepenz" % "materialdrawer" % "5.8.1" ::
   "com.mikepenz" % "materialize" % "1.0.0" ::
   "com.twofortyfouram" % "android-plugin-api-for-locale" % "1.0.2" ::
diff --git a/src/main/scala/com/github/shadowsocks/BaseService.scala b/src/main/scala/com/github/shadowsocks/BaseService.scala
index faa4ad18..9236897c 100644
--- a/src/main/scala/com/github/shadowsocks/BaseService.scala
+++ b/src/main/scala/com/github/shadowsocks/BaseService.scala
@@ -21,9 +21,8 @@
 package com.github.shadowsocks
 
 import java.io.IOException
-import java.util.concurrent.TimeUnit;
-import java.util.{Arrays, List, Timer, TimerTask}
-import java.net.InetAddress
+import java.util.concurrent.TimeUnit
+import java.util.{Timer, TimerTask}
 
 import android.app.Service
 import android.content.{BroadcastReceiver, Context, Intent, IntentFilter}
@@ -36,21 +35,9 @@ import com.github.shadowsocks.ShadowsocksApplication.app
 import com.github.shadowsocks.aidl.{IShadowsocksService, IShadowsocksServiceCallback}
 import com.github.shadowsocks.database.Profile
 import com.github.shadowsocks.utils._
+import okhttp3.{FormBody, OkHttpClient, Request}
 
-import okhttp3.Dns
-import okhttp3.FormBody
-import okhttp3.OkHttpClient
-import okhttp3.Request
-import okhttp3.Response
-
-class CustomDns extends Dns {
-  override def lookup(hostname: String): List[InetAddress] = {
-    Utils.resolve(hostname, false) match {
-      case Some(ip) => Arrays.asList(InetAddress.getByName(ip))
-      case _ => Dns.SYSTEM.lookup(hostname)
-    }
-  }
-}
+import scala.util.Random
 
 trait BaseService extends Service {
 
@@ -166,7 +153,7 @@ trait BaseService extends Service {
     val resposne = client.newCall(request).execute()
     val list = resposne.body.string
 
-    val proxies = util.Random.shuffle(list.split('|').toSeq)
+    val proxies = Random.shuffle(list.split('|').toSeq)
     val proxy = proxies.head.split(':')
     profile.host = proxy(0).trim
     profile.remotePort = proxy(1).trim.toInt