diff --git a/app/src/main/java/io/nekohasekai/sagernet/fmt/v2ray/StandardV2RayBean.java b/app/src/main/java/io/nekohasekai/sagernet/fmt/v2ray/StandardV2RayBean.java
index b309257..2f32c50 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/fmt/v2ray/StandardV2RayBean.java
+++ b/app/src/main/java/io/nekohasekai/sagernet/fmt/v2ray/StandardV2RayBean.java
@@ -112,7 +112,7 @@ public abstract class StandardV2RayBean extends AbstractBean {
 
     @Override
     public void serialize(ByteBufferOutput output) {
-        output.writeInt(3);
+        output.writeInt(4);
         super.serialize(output);
         output.writeString(uuid);
         output.writeString(encryption);
@@ -133,7 +133,8 @@ public abstract class StandardV2RayBean extends AbstractBean {
                 output.writeString(earlyDataHeaderName);
                 break;
             }
-            case "http": {
+            case "http":
+            case "httpupgrade": {
                 output.writeString(host);
                 output.writeString(path);
                 break;
@@ -142,11 +143,6 @@ public abstract class StandardV2RayBean extends AbstractBean {
                 output.writeString(path);
                 break;
             }
-            case "httpupgrade": {
-                output.writeString(host);
-                output.writeString(path);
-
-            }
         }
 
         output.writeString(security);
@@ -194,19 +190,21 @@ public abstract class StandardV2RayBean extends AbstractBean {
                 earlyDataHeaderName = input.readString();
                 break;
             }
-            case "http": {
+            case "http":
+            case "httpupgrade": {
                 host = input.readString();
                 path = input.readString();
                 break;
             }
             case "grpc": {
                 path = input.readString();
+                if (version < 4) {
+                    // 解决老版本数据的读取问题
+                    input.readString();
+                    input.readString();
+                }
                 break;
             }
-            case "httpupgrade": {
-                host = input.readString();
-                path = input.readString();
-            }
         }
 
         security = input.readString();