diff --git a/packages/ui/certd-server/Dockerfile b/packages/ui/certd-server/Dockerfile
index 10bc9fc2..8ba29221 100644
--- a/packages/ui/certd-server/Dockerfile
+++ b/packages/ui/certd-server/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:15.8.0
+FROM node:15.8.0-alpine3.12
 ENV TZ=Asia/Shanghai
 EXPOSE 3000
 ADD ./* /app/