diff --git a/Jenkinsfile b/Jenkinsfile
index c30ac2c..bd30242 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -2,7 +2,6 @@ pipeline {
     agent any
 
     parameters {
-        string(name: 'BRANCH', defaultValue: 'main', description: 'Git 分支名')
         string(name: 'VERSION', defaultValue: '', description: '发布版本号（留空使用 gradle.properties 中的 PUBLISH_VERSION）')
         booleanParam(name: 'RUN_TESTS', defaultValue: true, description: '是否运行自动化测试')
         booleanParam(name: 'PUBLISH', defaultValue: true, description: '是否发布到 Nexus')
@@ -16,7 +15,12 @@ pipeline {
     stages {
         stage('Checkout') {
             steps {
-                checkout scm
+                checkout([
+                  $class: 'GitSCM',
+                  branches: [[name: 'main']],
+                  extensions: [[$class: 'CleanBeforeCheckout']],
+                  userRemoteConfigs: scm.userRemoteConfigs
+                ])
                 script {
                     if (params.VERSION?.trim()) {
                         bat "powershell -Command \"(Get-Content gradle.properties) -replace '^PUBLISH_VERSION=.*', 'PUBLISH_VERSION=${params.VERSION}' | Set-Content gradle.properties\""
@@ -93,10 +97,7 @@ pipeline {
 
         stage('Publish to Nexus') {
             when {
-                allOf {
-                    branch 'main'
-                    expression { return params.PUBLISH }
-                }
+                expression { return params.PUBLISH }
             }
             steps {
                 script {