diff --git a/core/src/main/jni/shadowsocks-libev b/core/src/main/jni/shadowsocks-libev
index 7e414bb9..3e7c8529 160000
--- a/core/src/main/jni/shadowsocks-libev
+++ b/core/src/main/jni/shadowsocks-libev
@@ -1 +1 @@
-Subproject commit 7e414bb993c8e6dcc6f0c55cad3e00471910a2f7
+Subproject commit 3e7c852970ec050794becdaef04382d6e63c15b2
diff --git a/mobile/build.gradle b/mobile/build.gradle
index a889c44b..a2fbacc3 100644
--- a/mobile/build.gradle
+++ b/mobile/build.gradle
@@ -21,8 +21,8 @@ android {
         applicationId "com.github.shadowsocks"
         minSdkVersion rootProject.minSdkVersion
         targetSdkVersion rootProject.sdkVersion
-        versionCode 4050300
-        versionName "4.5.3"
+        versionCode 4050400
+        versionName "4.5.4"
         testApplicationId "com.github.shadowsocks.test"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         resConfigs "fa", "fr", "ja", "ko", "ru", "zh-rCN", "zh-rTW"
diff --git a/mobile/src/main/java/com/github/shadowsocks/bg/BaseService.kt b/mobile/src/main/java/com/github/shadowsocks/bg/BaseService.kt
index 5422e87d..f3561ede 100644
--- a/mobile/src/main/java/com/github/shadowsocks/bg/BaseService.kt
+++ b/mobile/src/main/java/com/github/shadowsocks/bg/BaseService.kt
@@ -255,6 +255,7 @@ object BaseService {
 
         fun startNativeProcesses() {
             val data = data
+            val profile = data.profile!!
             val cmd = buildAdditionalArguments(arrayListOf(
                     File((this as Context).applicationInfo.nativeLibraryDir, Executable.SS_LOCAL).absolutePath,
                     "-u",
@@ -269,6 +270,8 @@ object BaseService {
                 cmd += acl.absolutePath
             }
 
+            if (profile.udpdns) cmd += "-D"
+
             if (TcpFastOpen.sendEnabled) cmd += "--fast-open"
 
             data.sslocalProcess = GuardedProcess(cmd).start()
diff --git a/mobile/src/main/java/com/github/shadowsocks/bg/VpnService.kt b/mobile/src/main/java/com/github/shadowsocks/bg/VpnService.kt
index 14541c49..cd31abcb 100644
--- a/mobile/src/main/java/com/github/shadowsocks/bg/VpnService.kt
+++ b/mobile/src/main/java/com/github/shadowsocks/bg/VpnService.kt
@@ -183,9 +183,7 @@ class VpnService : BaseVpnService(), LocalDnsService.Interface {
     }
 
     override fun buildAdditionalArguments(cmd: ArrayList<String>): ArrayList<String> {
-        val profile = data.profile!!
         cmd += "-V"
-        if (profile.udpdns) cmd += "-D"
         return cmd
     }