diff --git a/.gitea/workflows/deploy-backend.yml b/.gitea/workflows/deploy-backend.yml
index 290e258..c423984 100644
--- a/.gitea/workflows/deploy-backend.yml
+++ b/.gitea/workflows/deploy-backend.yml
@@ -188,6 +188,26 @@ jobs:
             # 切换到后端项目目录
             cd /data/docker/photography/backend
             
+            # 修复 Docker 权限问题
+            echo "🔧 检查并修复 Docker 权限..."
+            sudo systemctl status docker || sudo systemctl start docker
+            sudo usermod -aG docker ${{ secrets.TYY_USER }} || true
+            
+            # 确保 Docker 服务正常运行
+            echo "🐳 检查 Docker 服务状态..."
+            sudo systemctl is-active --quiet docker || {
+              echo "❌ Docker 服务未运行，尝试启动..."
+              sudo systemctl start docker
+              sleep 5
+            }
+            
+            # 验证 Docker 权限
+            echo "🔍 验证 Docker 权限..."
+            docker --version || {
+              echo "❌ Docker 命令不可用"
+              exit 1
+            }
+            
             # 备份当前运行的容器 (如果存在)
             if docker ps -q -f name=photography-api; then
               echo "📦 备份当前后端容器..."
@@ -196,11 +216,18 @@ jobs:
             
             # 停止现有服务
             echo "🛑 停止现有服务..."
-            docker compose down api || true
+            docker compose down api || {
+              echo "⚠️  停止服务时遇到问题，继续执行..."
+              docker stop photography-api || true
+              docker rm photography-api || true
+            }
             
             # 拉取最新镜像
             echo "📥 拉取最新镜像..."
-            docker compose pull api
+            docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.sha }} || {
+              echo "❌ 镜像拉取失败，检查网络连接..."
+              exit 1
+            }
             
             # 数据库迁移需要手动执行
             echo "⚠️  数据库迁移需要手动执行，请在部署后运行："
@@ -287,7 +314,7 @@ jobs:
               echo "📦 找到备份镜像: $BACKUP_IMAGE"
               
               # 停止当前服务
-              docker compose down backend
+              docker compose down api
               
               # 标记备份镜像为最新
               docker tag $BACKUP_IMAGE photography_backend:rollback
@@ -296,7 +323,7 @@ jobs:
               sed -i 's|build: .*|image: photography_backend:rollback|g' docker-compose.yml
               
               # 启动回滚版本
-              docker compose up -d backend
+              docker compose up -d api
               
               echo "✅ 回滚完成"
             else
diff --git a/backend/docker-compose.prod.yml b/backend/docker-compose.prod.yml
index 025817f..4376bc5 100644
--- a/backend/docker-compose.prod.yml
+++ b/backend/docker-compose.prod.yml
@@ -1,7 +1,8 @@
 # Photography Portfolio Backend - Production Docker Compose
 # 生产环境配置 - 使用现有 PostgreSQL 和 Redis 服务
 
-version: '3.8'
+# version 字段已废弃，不再需要使用
+# version: '3.8'
 
 services:
   # 后端API服务 (仅API服务，无数据库)
diff --git a/backend/docker-compose.yml b/backend/docker-compose.yml
index b0f8b42..c70f044 100644
--- a/backend/docker-compose.yml
+++ b/backend/docker-compose.yml
@@ -1,7 +1,8 @@
 # Photography Portfolio Backend - Docker Compose
 # 本地开发和测试环境配置
 
-version: '3.8'
+# version 字段已废弃，不再需要使用
+# version: '3.8'
 
 services:
   # PostgreSQL 数据库