diff --git a/gz_harmonic/gz_harmonic_sim_dev.dockerfile b/gz_harmonic/gz_harmonic_sim_dev.dockerfile
index 0c947eb..0fcac27 100644
--- a/gz_harmonic/gz_harmonic_sim_dev.dockerfile
+++ b/gz_harmonic/gz_harmonic_sim_dev.dockerfile
@@ -2,6 +2,10 @@ FROM osrf/ros:jazzy-desktop-full AS builder
 
 ARG DEBIAN_FRONTEND=noninteractive
 
+# 替换 ubuntu.sources 中的官方源为阿里云
+RUN sed -i 's|http://archive.ubuntu.com/ubuntu|https://mirrors.aliyun.com/ubuntu|g' /etc/apt/sources.list.d/ubuntu.sources && \
+    sed -i 's|http://security.ubuntu.com/ubuntu|https://mirrors.aliyun.com/ubuntu|g' /etc/apt/sources.list.d/ubuntu.sources
+
 # catkin-tools
 RUN apt-get update && apt-get install -y \
     ca-certificates \