diff --git a/Dockerfile_Gitea b/Dockerfile_Gitea
index 978eb87..fa7d746 100644
--- a/Dockerfile_Gitea
+++ b/Dockerfile_Gitea
@@ -1,4 +1,4 @@
-FROM alpine
+FROM docker.m.daocloud.io/library/alpine:3.20
 COPY ./rts-sim-testing-service /usr/local/bin/rts-sim-testing-service
 WORKDIR /bj-rtsts
 COPY ./config/*.yml ./