diff --git a/base-image/Dockerfile b/base-image/Dockerfile
index f35b541..0e70031 100644
--- a/base-image/Dockerfile
+++ b/base-image/Dockerfile
@@ -1,9 +1,5 @@
 FROM ubuntu:20.04 AS build
 
-RUN sed -i s@/archive.ubuntu.com/@/mirror.ubuntu.ikoula.com/@g /etc/apt/sources.list && \
-    sed -i s@/security.ubuntu.com/@/mirror.ubuntu.ikoula.com/@g /etc/apt/sources.list && \
-    apt-get clean
-
 RUN apt-get update \
     && env DEBIAN_FRONTEND=noninteractive apt-get install -y \
     wget \
@@ -84,10 +80,6 @@ RUN cd /cvm-agent/cvmassistants/attest-helper \
 # Final image
 FROM ubuntu:20.04
 
-RUN sed -i s@/archive.ubuntu.com/@/mirror.ubuntu.ikoula.com/@g /etc/apt/sources.list && \
-    sed -i s@/security.ubuntu.com/@/mirror.ubuntu.ikoula.com/@g /etc/apt/sources.list && \
-    apt-get clean
-
 RUN apt-get update \
     && env DEBIAN_FRONTEND=noninteractive apt-get install -y \
     wget \
@@ -161,9 +153,6 @@ COPY --from=build  /cvm-agent/cvmassistants/secretprovider/secret-provider-agent
 #RUN echo  "export LD_LIBRARY_PATH=/usr/local/lib/rats-tls:$LD_LIBRARY_PATH" >> /etc/profile
 
 #config supervisord
-#RUN sed -i s@/archive.ubuntu.com/@/mirrors.ustc.edu.cn/@g /etc/apt/sources.list && \
-#    sed -i s@/security.ubuntu.com/@/mirrors.ustc.edu.cn/@g /etc/apt/sources.list && \
-#    apt-get clean
 RUN apt-get update \
     && env DEBIAN_FRONTEND=noninteractive apt-get install -y \
     supervisor \
diff --git a/cvmassistants/keyprovider/key-broker-server/docker/Dockerfile b/cvmassistants/keyprovider/key-broker-server/docker/Dockerfile
index 786587d..b0ad05d 100644
--- a/cvmassistants/keyprovider/key-broker-server/docker/Dockerfile
+++ b/cvmassistants/keyprovider/key-broker-server/docker/Dockerfile
@@ -1,8 +1,4 @@
-FROM ubuntu:20.04 as build
-
-#RUN sed -i s@/archive.ubuntu.com/@/mirrors.ustc.edu.cn/@g /etc/apt/sources.list && \
-#    sed -i s@/security.ubuntu.com/@/mirrors.ustc.edu.cn/@g /etc/apt/sources.list && \
-#    apt-get clean
+FROM ubuntu:20.04 AS build
 
 RUN apt-get update \
     && env DEBIAN_FRONTEND=noninteractive apt-get install -y \
@@ -48,14 +44,6 @@ RUN cd /root \
 
 FROM ubuntu:20.04
 
-RUN sed -i s@/archive.ubuntu.com/@/mirrors.ustc.edu.cn/@g /etc/apt/sources.list && \
-    sed -i s@/security.ubuntu.com/@/mirrors.ustc.edu.cn/@g /etc/apt/sources.list && \
-    apt-get clean
-
-#RUN mkdir -p  /usr/share/zoneinfo/
-#COPY /usr/share/zoneinfo /usr/share/zoneinfo
-#RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
-
 RUN apt-get update \
     && env DEBIAN_FRONTEND=noninteractive apt-get install -y \
        libssl-dev \
@@ -88,4 +76,3 @@ ENV LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/rats-tls
 WORKDIR /workplace/app
 ENTRYPOINT ["/workplace/app/key_broker_server"]
 CMD []
-
diff --git a/cvmassistants/secretprovider/secret-broker-server/docker/Dockerfile b/cvmassistants/secretprovider/secret-broker-server/docker/Dockerfile
index 9371943..a196a4f 100644
--- a/cvmassistants/secretprovider/secret-broker-server/docker/Dockerfile
+++ b/cvmassistants/secretprovider/secret-broker-server/docker/Dockerfile
@@ -1,8 +1,4 @@
-FROM ubuntu:20.04 as build
-
-RUN sed -i s@/archive.ubuntu.com/@/mirrors.ustc.edu.cn/@g /etc/apt/sources.list && \
-    sed -i s@/security.ubuntu.com/@/mirrors.ustc.edu.cn/@g /etc/apt/sources.list && \
-    apt-get clean
+FROM ubuntu:20.04 AS build
 
 RUN apt-get update \
     && env DEBIAN_FRONTEND=noninteractive apt-get install -y \
@@ -49,14 +45,6 @@ RUN cd /root \
 
 FROM ubuntu:20.04
 
-RUN sed -i s@/archive.ubuntu.com/@/mirrors.ustc.edu.cn/@g /etc/apt/sources.list && \
-    sed -i s@/security.ubuntu.com/@/mirrors.ustc.edu.cn/@g /etc/apt/sources.list && \
-    apt-get clean
-
-#RUN mkdir -p  /usr/share/zoneinfo/
-#COPY /usr/share/zoneinfo /usr/share/zoneinfo
-#RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
-
 RUN apt-get update \
     && env DEBIAN_FRONTEND=noninteractive apt-get install -y \
        libssl-dev \
@@ -86,4 +74,3 @@ ENV LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/rats-tls
 WORKDIR /workplace/app
 ENTRYPOINT ["/workplace/app/secret_broker_server"]
 CMD []
-
diff --git a/release-please-config.json b/release-please-config.json
index 90e0cf6..be07df7 100644
--- a/release-please-config.json
+++ b/release-please-config.json
@@ -1,5 +1,6 @@
 {
   "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
+  "always-update": true,
   "draft-pull-request": true,
   "include-component-in-tag": false,
   "include-v-in-tag": true,