diff --git a/bin/update_docker_images.sh b/bin/update_docker_images.sh
index 03a1be4..da38484 100644
--- a/bin/update_docker_images.sh
+++ b/bin/update_docker_images.sh
@@ -15,5 +15,8 @@ docker-compose -f $docker_compose_file down
 echo "正在更新镜像.."
 docker-compose -f $docker_compose_file pull  
 
+echo "删除无用镜像.."
+docker rmi $(docker images -f "dangling=true" -q)
+
 echo "正在启动容器.."
-docker-compose -f $docker_compose_file up -d
\ No newline at end of file
+docker-compose -f $docker_compose_file up -d