diff --git a/project/plugins.sbt b/project/plugins.sbt
index 0467852e..34ab9cec 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,4 +1,4 @@
-addSbtPlugin("org.scala-android" % "sbt-android" % "1.6.16")
+addSbtPlugin("org.scala-android" % "sbt-android" % "1.6.17")
 
 addSbtPlugin("com.timushev.sbt" % "sbt-updates" % "0.1.10")
 
diff --git a/src/main/AndroidManifest.xml b/src/main/AndroidManifest.xml
index 2200e68d..c8048836 100644
--- a/src/main/AndroidManifest.xml
+++ b/src/main/AndroidManifest.xml
@@ -1,7 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           xmlns:tools="http://schemas.android.com/tools" package="com.github.shadowsocks"
-          android:versionCode="153"
-          android:versionName="3.1.2">
+          android:versionCode="154"
+          android:versionName="3.1.3">
 
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
diff --git a/src/main/jni/shadowsocks-libev b/src/main/jni/shadowsocks-libev
index 61cd731c..6e48d25e 160000
--- a/src/main/jni/shadowsocks-libev
+++ b/src/main/jni/shadowsocks-libev
@@ -1 +1 @@
-Subproject commit 61cd731c4ee3c26533a96bf5a21631f31d747610
+Subproject commit 6e48d25eab5f6db3a4cce303fed703bf01f448e9