diff --git a/build/Dockerfile_app b/build/Dockerfile_app
index 188e40e..4918077 100644
--- a/build/Dockerfile_app
+++ b/build/Dockerfile_app
@@ -1,8 +1,4 @@
-FROM registry.ngaiot.com/k8s/alpine-glibc:3.20
-ENV TZ=Asia/Shanghai
-RUN apk update && apk add tzdata
-RUN ln -fs /usr/share/zoneinfo/${TZ} /etc/localtime \
-    && echo ${TZ} > /etc/timezone
+FROM registry.ngaiot.com/base-images/alpine_glibc_3.20_cst:1
 WORKDIR /app/
 COPY   *.exe  configFiles  /app/
 #河北轻量化专用