diff --git a/SimpleAdmin.Web.Entry/Dockerfile b/SimpleAdmin.Web.Entry/Dockerfile
index 9eab0a8..a606a4c 100644
--- a/SimpleAdmin.Web.Entry/Dockerfile
+++ b/SimpleAdmin.Web.Entry/Dockerfile
@@ -1,4 +1,4 @@
-FROM registry-vpc.cn-chengdu.aliyuncs.com/zhixueli-prod/dotnet-sdk:9.0 AS publish
+FROM registry-vpc.cn-chengdu.aliyuncs.com/zhixueli-prod/dotnet-sdk:8.0 AS publish
 WORKDIR /src
 COPY . .
 WORKDIR "/src/SimpleAdmin.Web.Entry"