diff --git a/Jenkinsfile b/Jenkinsfile
index 16cf762..5597efc 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -52,6 +52,9 @@ pipeline {
                     set -e
                     sudo docker buildx version
                     sudo docker run --privileged --rm tonistiigi/binfmt --install arm64
+                    
+                    # 强制清理旧的 builder 实例，防止僵尸状态
+                    sudo docker buildx rm ${BUILDER_NAME} || true
                 """
             }
         }