diff --git a/Update.json b/Update.json
index 7c45a663..127f787f 100644
--- a/Update.json
+++ b/Update.json
@@ -3192,6 +3192,17 @@
                 }
             ],
             "Notes": "XMOJ-Script 2.5.0 新增了比赛题目切换器，方便您在题目之间快速切换。此功能默认启用，您也可以在设置中禁用它。本版本还修复了一个导致时间显示为“NaN年前”的错误, 更新了一些 CSS selector，以适应 XMOJ 网站的最新变化."
+        },
+        "2.5.1": {
+            "UpdateDate": 1759830659949,
+            "Prerelease": true,
+            "UpdateContents": [
+                {
+                    "PR": 876,
+                    "Description": "refactor: simplify SubmitLink selection by querying all anchors and finding by text"
+                }
+            ],
+            "Notes": "No release notes were provided for this release."
         }
     }
 }
\ No newline at end of file
diff --git a/XMOJ.user.js b/XMOJ.user.js
index 9382516b..cf08940d 100644
--- a/XMOJ.user.js
+++ b/XMOJ.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         XMOJ
-// @version      2.5.0
+// @version      2.5.1
 // @description  XMOJ增强脚本
 // @author       @XMOJ-Script-dev, @langningchen and the community
 // @namespace    https://github/langningchen
@@ -1710,25 +1710,8 @@ async function main() {
                             document.querySelector("body > div > div.mt-3 > center").lastElementChild.style.marginLeft = "10px";
                         }
                         //修复提交按钮
-                        let SubmitLink = document.querySelector('.mt-3 > center:nth-child(1) > a:nth-child(12)');
-                        if (SubmitLink == null) { //a special type of problem
-                            SubmitLink = document.querySelector('.mt-3 > center:nth-child(1) > a:nth-child(10)');
-                        }
-                        if (SubmitLink == null) {
-                            SubmitLink = document.querySelector('.mt-3 > center:nth-child(1) > a:nth-child(11)');
-                        }
-                        if (SubmitLink == null) {
-                            SubmitLink = document.querySelector('.mt-3 > center:nth-child(1) > a:nth-child(13)');
-                        }
-                        if (SubmitLink == null) {
-                            SubmitLink = document.querySelector('.mt-3 > center:nth-child(1) > a:nth-child(9)');
-                        }
-                        if (SubmitLink == null) { //为什么这个破东西老是换位置
-                            SubmitLink = document.querySelector('.mt-3 > center:nth-child(1) > a:nth-child(7)');
-                        }
-                        if (SubmitLink == null) { //tmd又换位置
-                            SubmitLink = document.querySelector('.mt-3 > center:nth-child(1) > a:nth-child(8)');
-                        }
+                        const links = document.querySelectorAll('.mt-3 > center:nth-child(1) > a');
+                        const SubmitLink = Array.from(links).find(a => a.textContent.trim() === '提交');
                         let SubmitButton = document.createElement('button');
                         SubmitButton.id = 'SubmitButton';
                         SubmitButton.className = 'btn btn-outline-secondary';
diff --git a/package.json b/package.json
index b0598518..7dc97daa 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "xmoj-script",
-  "version": "2.5.0",
+  "version": "2.5.1",
   "description": "an improvement script for xmoj.tech",
   "main": "AddonScript.js",
   "scripts": {