diff --git a/build.gradle b/build.gradle
index eb82b6bc..68c27f97 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,8 +6,8 @@ ext {
     sdkVersion = 33
     compileSdkVersion = 33
     buildToolsVersion = '31.0.0'
-    versionCode = 530
-    versionName = '5.3.0'
+    versionCode = 531
+    versionName = '5.3.1'
     resConfigs = ['zh-rCN']
 }
 
diff --git a/core/src/main/java/com/github/shadowsocks/bg/OverTlsWrapper.kt b/core/src/main/java/com/github/shadowsocks/bg/OverTlsWrapper.kt
index 2b1b619f..582756a3 100644
--- a/core/src/main/java/com/github/shadowsocks/bg/OverTlsWrapper.kt
+++ b/core/src/main/java/com/github/shadowsocks/bg/OverTlsWrapper.kt
@@ -8,7 +8,7 @@ object OverTlsWrapper {
     }
 
     @JvmStatic
-    external fun runClient(vpnService: VpnService, cofigPath: String, statPath: String, verbose: Boolean): Int
+    external fun runClient(vpnService: VpnService, cofigPath: String, statPath: String, verbosity: Int): Int
 
     @JvmStatic
     external fun stopClient(): Int
diff --git a/core/src/main/java/com/github/shadowsocks/bg/ProxyInstance.kt b/core/src/main/java/com/github/shadowsocks/bg/ProxyInstance.kt
index 3086f55b..b1807dcf 100644
--- a/core/src/main/java/com/github/shadowsocks/bg/ProxyInstance.kt
+++ b/core/src/main/java/com/github/shadowsocks/bg/ProxyInstance.kt
@@ -156,7 +156,8 @@ class ProxyInstance(val profile: Profile, private val route: String = profile.ro
         override fun run() {
             super.run()
             if (isOverTls) {
-                vpnService?.let { OverTlsWrapper.runClient(it, configPath(), statPath(), verbose()) }
+                val verbosity = if (verbose()) 5 else 3
+                vpnService?.let { OverTlsWrapper.runClient(it, configPath(), statPath(), verbosity) }
             } else {
                 cmd?.let { SsrClientWrapper.runSsrClient(it) }
             }
diff --git a/core/src/main/java/com/github/shadowsocks/bg/SsrVpnService.kt b/core/src/main/java/com/github/shadowsocks/bg/SsrVpnService.kt
index 17ae8c8d..b1130647 100644
--- a/core/src/main/java/com/github/shadowsocks/bg/SsrVpnService.kt
+++ b/core/src/main/java/com/github/shadowsocks/bg/SsrVpnService.kt
@@ -245,7 +245,9 @@ class SsrVpnService : VpnService(), LocalDnsService.Interface {
         private val dnsOverTcp: Boolean
     ) : Thread() {
         override fun run() {
-            Tun2proxy.run(proxyUrl, tunFd, tunMtu, verbose, dnsOverTcp)
+            val verbosity = if (verbose) 5 else 3
+            val dnsStrategy = if (dnsOverTcp) 1 else 2
+            Tun2proxy.run(proxyUrl, tunFd, tunMtu.toChar(), verbosity, dnsStrategy)
         }
 
         fun terminate() {
diff --git a/core/src/main/java/com/github/shadowsocks/bg/Tun2proxy.kt b/core/src/main/java/com/github/shadowsocks/bg/Tun2proxy.kt
index 41a17e60..d5364501 100644
--- a/core/src/main/java/com/github/shadowsocks/bg/Tun2proxy.kt
+++ b/core/src/main/java/com/github/shadowsocks/bg/Tun2proxy.kt
@@ -6,7 +6,7 @@ object Tun2proxy {
     }
 
     @JvmStatic
-    external fun run(proxyUrl: String, tunFd: Int, tunMtu: Int, verbose: Boolean, dnsOverTcp: Boolean): Int
+    external fun run(proxyUrl: String, tunFd: Int, tunMtu: Char, verbosity: Int, dnsStrategy: Int): Int
 
     @JvmStatic
     external fun stop(): Int
diff --git a/rust/overtls b/rust/overtls
index 38dbd353..142abb79 160000
--- a/rust/overtls
+++ b/rust/overtls
@@ -1 +1 @@
-Subproject commit 38dbd353b3d3cbf723da8fd551b3aecbca7cd3a5
+Subproject commit 142abb799014729a60862032f58f6d5f14d8c511
diff --git a/rust/tun2proxy b/rust/tun2proxy
index 80673940..9f60eee2 160000
--- a/rust/tun2proxy
+++ b/rust/tun2proxy
@@ -1 +1 @@
-Subproject commit 806739400308ff37a81a385329c295f57176d12d
+Subproject commit 9f60eee2e1db357c1683f06b756f121dbb356f5b