diff --git a/jenkins/Jenkinsfile.build-and-deploy b/jenkins/Jenkinsfile.build-and-deploy
index 3338e8f1..b2b46034 100644
--- a/jenkins/Jenkinsfile.build-and-deploy
+++ b/jenkins/Jenkinsfile.build-and-deploy
@@ -101,6 +101,7 @@ pipeline {
               # 这里不使用 -x，避免删除 node_modules 等忽略目录后与 RUN_NPM_CI=false 的配置冲突。
               git reset --hard HEAD
               git clean -fd
+              rm -rf "build/${EFFECTIVE_BUILD_VERSION}"
             '
           '''