diff --git a/app/src/main/java/io/nekohasekai/sagernet/fmt/tuic/TuicBean.java b/app/src/main/java/io/nekohasekai/sagernet/fmt/tuic/TuicBean.java
index 51322b8..007ef8f 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/fmt/tuic/TuicBean.java
+++ b/app/src/main/java/io/nekohasekai/sagernet/fmt/tuic/TuicBean.java
@@ -21,6 +21,9 @@ public class TuicBean extends AbstractBean {
     public Boolean reduceRTT;
     public Integer mtu;
     public String sni;
+
+    // TUIC zep
+
     public Boolean fastConnect;
     public Boolean allowInsecure;
 
@@ -45,7 +48,7 @@ public class TuicBean extends AbstractBean {
         if (fastConnect == null) fastConnect = false;
         if (allowInsecure == null) allowInsecure = false;
         if (customJSON == null) customJSON = "";
-        if (protocolVersion == null) protocolVersion = 4;
+        if (protocolVersion == null) protocolVersion = 5;
         if (uuid == null) uuid = "";
     }
 
diff --git a/app/src/main/java/io/nekohasekai/sagernet/fmt/tuic/TuicFmt.kt b/app/src/main/java/io/nekohasekai/sagernet/fmt/tuic/TuicFmt.kt
index 65ba3be..b36c8e7 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/fmt/tuic/TuicFmt.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/fmt/tuic/TuicFmt.kt
@@ -56,7 +56,8 @@ fun TuicBean.buildTuicConfigV5(port: Int, cacheFile: (() -> File)?): JSONObject
             }
             put("congestion_control", congestionController)
             put("disable_sni", disableSNI)
-            put("zero_rtt_handshake", disableSNI)
+            put("zero_rtt_handshake", reduceRTT)
+            if (allowInsecure) put("allow_insecure", true)
         })
         put("local", JSONObject().apply {
             put("server", "127.0.0.1:$port")
diff --git a/app/src/main/java/io/nekohasekai/sagernet/ui/profile/TuicSettingsActivity.kt b/app/src/main/java/io/nekohasekai/sagernet/ui/profile/TuicSettingsActivity.kt
index 431bc7e..c94a4a6 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/ui/profile/TuicSettingsActivity.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/ui/profile/TuicSettingsActivity.kt
@@ -73,18 +73,15 @@ class TuicSettingsActivity : ProfileSettingsActivity<TuicBean>() {
         val uuid = findPreference<EditTextPreference>(Key.SERVER_USERNAME)!!
         val mtu = findPreference<EditTextPreference>(Key.SERVER_MTU)!!
         val fastConnect = findPreference<SwitchPreference>(Key.SERVER_FAST_CONNECT)!!
-        val allowInsecure = findPreference<SwitchPreference>(Key.SERVER_ALLOW_INSECURE)!!
         fun updateVersion(v: Int) {
             if (v == 5) {
                 uuid.isVisible = true
                 mtu.isVisible = false
                 fastConnect.isVisible = false
-                allowInsecure.isVisible = false
             } else {
                 uuid.isVisible = false
                 mtu.isVisible = true
                 fastConnect.isVisible = true
-                allowInsecure.isVisible = true
             }
         }
         findPreference<SimpleMenuPreference>(Key.SERVER_PROTOCOL)!!.setOnPreferenceChangeListener { _, newValue ->
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index c009ac3..bc7ba9a 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -465,7 +465,7 @@
     <string name="use_selector">启用 selector （免重载切换节点）</string>
     <string name="front_proxy">前置代理</string>
     <string name="landing_proxy">落地代理</string>
-    <string name="shadowtls_version">ShadowTLS 版本</string>
+    <string name="protocol_version">协议版本</string>
     <string name="share_subscription">分享订阅</string>
     <string name="show_group_in_notification">在通知中显示组名</string>
     <string name="reset_connections">重置连接</string>
diff --git a/app/src/main/res/values/arrays.xml b/app/src/main/res/values/arrays.xml
index a0f2a81..119de5f 100644
--- a/app/src/main/res/values/arrays.xml
+++ b/app/src/main/res/values/arrays.xml
@@ -387,13 +387,8 @@
     </string-array>
 
     <string-array name="tuic_version">
-        <item>v4</item>
-        <item>v5</item>
-    </string-array>
-
-    <string-array name="tuic_version_value">
-        <item>4</item>
         <item>5</item>
+        <item>4</item>
     </string-array>
 
     <string-array name="socks_versions">
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 034905a..75c6d77 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -506,7 +506,7 @@ Anyone can write advanced plugins, which can control NekoBox. please download an
     <string name="front_proxy">Front proxy</string>
     <string name="landing_proxy">Landing Proxy</string>
     <string name="action_shadowtls" translatable="false">ShadowTLS</string>
-    <string name="shadowtls_version">ShadowTLS Version</string>
+    <string name="protocol_version">Protocol Version</string>
     <string name="share_subscription">Share Subscription</string>
     <string name="show_group_in_notification">Show group name in in notification</string>
     <string name="reset_connections">Reset Connections</string>
diff --git a/app/src/main/res/xml/shadowtls_preferences.xml b/app/src/main/res/xml/shadowtls_preferences.xml
index 215c608..870b2c6 100644
--- a/app/src/main/res/xml/shadowtls_preferences.xml
+++ b/app/src/main/res/xml/shadowtls_preferences.xml
@@ -21,7 +21,7 @@
             app:entryValues="@array/shadowtls_version_value"
             app:icon="@drawable/ic_baseline_update_24"
             app:key="version"
-            app:title="@string/shadowtls_version"
+            app:title="@string/protocol_version"
             app:useSimpleSummaryProvider="true" />
         <EditTextPreference
             app:dialogLayout="@layout/layout_password_dialog"
diff --git a/app/src/main/res/xml/tuic_preferences.xml b/app/src/main/res/xml/tuic_preferences.xml
index dee6bb5..4671853 100644
--- a/app/src/main/res/xml/tuic_preferences.xml
+++ b/app/src/main/res/xml/tuic_preferences.xml
@@ -7,12 +7,12 @@
         app:useSimpleSummaryProvider="true" />
 
     <moe.matsuri.nb4a.ui.SimpleMenuPreference
-        app:defaultValue="4"
+        app:defaultValue="5"
         app:entries="@array/tuic_version"
-        app:entryValues="@array/tuic_version_value"
-        app:icon="@drawable/ic_baseline_nfc_24"
+        app:entryValues="@array/tuic_version"
+        app:icon="@drawable/ic_baseline_update_24"
         app:key="serverProtocol"
-        app:title="@string/app_version"
+        app:title="@string/protocol_version"
         app:useSimpleSummaryProvider="true" />
 
     <PreferenceCategory app:title="@string/proxy_cat">