diff --git a/tools/osbuilder/rootfs-builder/ubuntu/config.sh b/tools/osbuilder/rootfs-builder/ubuntu/config.sh
index 40692c9c00..4375cdf63a 100644
--- a/tools/osbuilder/rootfs-builder/ubuntu/config.sh
+++ b/tools/osbuilder/rootfs-builder/ubuntu/config.sh
@@ -26,7 +26,7 @@ if [ "${AA_KBC}" == "eaa_kbc" ] && [ "${ARCH}" == "x86_64" ]; then
 	if [ "${VERSION_ID}" == "20.04" ]; then
 		PACKAGES+=" apt gnupg"
 		AA_KBC_EXTRAS="
-RUN echo 'deb [arch=amd64] http://mirrors.openanolis.cn/inclavare-containers/ubuntu${VERSION_ID} bionic main' \| tee /etc/apt/sources.list.d/inclavare-containers.list; \
+RUN echo 'deb [arch=amd64] http://mirrors.openanolis.cn/inclavare-containers/ubuntu${VERSION_ID} ${OS_VERSION} main' \| tee /etc/apt/sources.list.d/inclavare-containers.list; \
     curl -L http://mirrors.openanolis.cn/inclavare-containers/ubuntu${VERSION_ID}/DEB-GPG-KEY.key \| apt-key add -; \
     apt-get update; \
     apt-get install -y rats-tls
diff --git a/tools/osbuilder/rootfs-builder/ubuntu/rootfs_lib.sh b/tools/osbuilder/rootfs-builder/ubuntu/rootfs_lib.sh
index 8c617cd4b5..c32660431b 100644
--- a/tools/osbuilder/rootfs-builder/ubuntu/rootfs_lib.sh
+++ b/tools/osbuilder/rootfs-builder/ubuntu/rootfs_lib.sh
@@ -39,7 +39,7 @@ EOF
 		if [ "${VERSION_ID}" == "20.04" ]; then
 			curl -L http://mirrors.openanolis.cn/inclavare-containers/ubuntu${VERSION_ID}/DEB-GPG-KEY.key | chroot "$rootfs_dir" apt-key add -
 			cat << EOF | chroot "$rootfs_dir"
-echo 'deb [arch=amd64] http://mirrors.openanolis.cn/inclavare-containers/ubuntu${VERSION_ID} bionic main' | tee /etc/apt/sources.list.d/inclavare-containers.list
+echo 'deb [arch=amd64] http://mirrors.openanolis.cn/inclavare-containers/ubuntu${VERSION_ID} focal main' | tee /etc/apt/sources.list.d/inclavare-containers.list
 apt-get update
 apt-get install -y rats-tls
 EOF