diff --git a/Dockerfile b/Dockerfile
index 05851a22..f0d3f47f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ARG TERWAY_POLICY_IMAGE=registry.cn-hongkong.aliyuncs.com/acs/terway:policy-20230526-a430a3c@sha256:599e3a681450f4936f81fa0f870b6abcb3621fac99a4267e8798295d95e69099
-ARG UBUNTU_IMAGE=docker.io/library/ubuntu:20.04@sha256:b33325a00c7c27b23ae48cf17d2c654e2c30812b35e7846c006389318f6a71c2
+ARG UBUNTU_IMAGE=registry.cn-hangzhou.aliyuncs.com/acs/ubuntu:20.04-update
 ARG CILIUM_LLVM_IMAGE=quay.io/cilium/cilium-llvm:547db7ec9a750b8f888a506709adb41f135b952e@sha256:4d6fa0aede3556c5fb5a9c71bc6b9585475ac9b1064f516d4c45c8fb691c9d9e
 ARG CILIUM_BPFTOOL_IMAGE=quay.io/cilium/cilium-bpftool:78448c1a37ff2b790d5e25c3d8b8ec3e96e6405f@sha256:99a9453a921a8de99899ef82e0822f0c03f65d97005c064e231c06247ad8597d
 ARG CILIUM_IPROUTE2_IMAGE=quay.io/cilium/cilium-iproute2:3570d58349efb2d6b0342369a836998c93afd291@sha256:1abcd7a5d2117190ab2690a163ee9cd135bc9e4cf8a4df662a8f993044c79342