diff --git a/backend/package.json b/backend/package.json
index 1890f2f..d1a6679 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.12.7",
+  "version": "2.12.8",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {
diff --git a/backend/src/core/proxy-utils/parsers/peggy/loon.peg b/backend/src/core/proxy-utils/parsers/peggy/loon.peg
index 43b963f..fe8b82a 100644
--- a/backend/src/core/proxy-utils/parsers/peggy/loon.peg
+++ b/backend/src/core/proxy-utils/parsers/peggy/loon.peg
@@ -103,7 +103,7 @@ domain = match:[0-9a-zA-z-_.]+ {
 
 port = digits:[0-9]+ { 
     const port = parseInt(digits.join(""), 10); 
-    if (port >= 80 && port <= 65535) {
+    if (port >= 0 && port <= 65535) {
     	return port;
     }
     throw new Error("Invalid port number: " + port);
diff --git a/backend/src/core/proxy-utils/parsers/peggy/qx.peg b/backend/src/core/proxy-utils/parsers/peggy/qx.peg
index 0b4d897..e041184 100644
--- a/backend/src/core/proxy-utils/parsers/peggy/qx.peg
+++ b/backend/src/core/proxy-utils/parsers/peggy/qx.peg
@@ -128,7 +128,7 @@ ip = & {
 
 port = digits:[0-9]+ { 
     const port = parseInt(digits.join(""), 10); 
-    if (port >= 80 && port <= 65535) {
+    if (port >= 0 && port <= 65535) {
     	return port;
     }
 }
diff --git a/backend/src/core/proxy-utils/parsers/peggy/surge.peg b/backend/src/core/proxy-utils/parsers/peggy/surge.peg
index 9036b5f..a478f71 100644
--- a/backend/src/core/proxy-utils/parsers/peggy/surge.peg
+++ b/backend/src/core/proxy-utils/parsers/peggy/surge.peg
@@ -107,7 +107,7 @@ domain = match:[0-9a-zA-z-_.]+ {
 
 port = digits:[0-9]+ { 
     const port = parseInt(digits.join(""), 10); 
-    if (port >= 80 && port <= 65535) {
+    if (port >= 0 && port <= 65535) {
     	return port;
     }
 }
diff --git a/backend/src/core/proxy-utils/parsers/peggy/trojan-uri.peg b/backend/src/core/proxy-utils/parsers/peggy/trojan-uri.peg
index b770568..15cb1a0 100644
--- a/backend/src/core/proxy-utils/parsers/peggy/trojan-uri.peg
+++ b/backend/src/core/proxy-utils/parsers/peggy/trojan-uri.peg
@@ -70,7 +70,7 @@ ip = & {
 
 port = digits:[0-9]+ { 
   const port = parseInt(digits.join(""), 10); 
-  if (port >= 80 && port <= 65535) {
+  if (port >= 0 && port <= 65535) {
     return port;
   } else {
     throw new Error("Invalid port: " + port);