diff --git a/backend/services/identity-service/Dockerfile b/backend/services/identity-service/Dockerfile
index 5875576e..02c6ce26 100644
--- a/backend/services/identity-service/Dockerfile
+++ b/backend/services/identity-service/Dockerfile
@@ -5,12 +5,6 @@
 # Build stage - use Alpine for smaller build context
 FROM node:20-alpine AS builder
 
-# Use Aliyun mirror for Alpine packages (China acceleration)
-RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
-
-# Use taobao npm registry (China acceleration)
-RUN npm config set registry https://registry.npmmirror.com
-
 WORKDIR /app
 
 # Copy package files
@@ -41,19 +35,12 @@ FROM node:20-slim
 
 WORKDIR /app
 
-# Use Aliyun mirror for Debian packages (China acceleration)
-RUN sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list.d/debian.sources 2>/dev/null || \
-    sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list 2>/dev/null || true
-
 # Install OpenSSL and curl for health checks
 RUN apt-get update && apt-get install -y --no-install-recommends \
     openssl \
     curl \
     && rm -rf /var/lib/apt/lists/*
 
-# Use taobao npm registry (China acceleration)
-RUN npm config set registry https://registry.npmmirror.com
-
 # Install production dependencies only
 COPY package*.json ./
 RUN npm ci --only=production