diff --git a/backend/Dockerfile b/backend/Dockerfile
index e3c0472..7947a22 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -2,7 +2,7 @@
 # 多阶段构建，优化镜像大小和安全性
 
 # Stage 1: 构建阶段
-FROM golang:1.23-alpine AS builder
+FROM hub.skillixx.com/golang:1.23-alpine AS builder
 
 # 设置工作目录
 WORKDIR /app