diff --git a/backend/package.json b/backend/package.json
index 4f13f67ac..0c8fb8b2c 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.428",
+  "version": "2.14.429",
   "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/index.js b/backend/src/core/proxy-utils/parsers/index.js
index 070089836..55e03b3e4 100644
--- a/backend/src/core/proxy-utils/parsers/index.js
+++ b/backend/src/core/proxy-utils/parsers/index.js
@@ -842,6 +842,11 @@ function URI_Trojan() {
     };
 
     const parse = (line) => {
+        const matched = /^(trojan:\/\/.*?@.*?)(:(\d+))?\/?(\?.*?)?$/.exec(line);
+        const port = matched?.[2];
+        if (!port) {
+            line = line.replace(matched[1], `${matched[1]}:443`);
+        }
         let [newLine, name] = line.split(/#(.+)/, 2);
         const parser = getTrojanURIParser();
         const proxy = parser.parse(newLine);