diff --git a/.ci/Dockerfile b/.ci/Dockerfile
index faa674f..edb77c0 100644
--- a/.ci/Dockerfile
+++ b/.ci/Dockerfile
@@ -3,28 +3,32 @@ FROM ubuntu:22.04
 # 设置非root用户
 RUN useradd -m -s /bin/bash builder
 
-# 一次性安装所有构建所需的工具和依赖
+# 1. 安装构建工具和编译器（包含 GCC 13）
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
         wget tar git curl ca-certificates \
-        build-essential make gcc g++ \
+        build-essential \
+        gcc-13 g++-13 \
         && rm -rf /var/lib/apt/lists/*
 
-# 切换到builder用户，在其目录下安装xmake
+# 2. 设置 GCC 13 为默认编译器
+RUN update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-13 100 && \
+    update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-13 100
+
+# 3. 切换到builder用户安装xmake
 USER builder
 WORKDIR /home/builder
 
 # 下载并安装xmake
 RUN wget -O xmake https://git.fig-lang.cn/PuqiAR/xmake-binary-copy/raw/commit/989d1f2dabb0bc8d5981a5f900c2cf7c2ac78ee4/xmake-bundle-v3.0.5.linux.x86_64 && \
     chmod +x xmake && \
-    # 将xmake安装到用户目录，避免root权限问题
     ./xmake --version 2>&1 | head -1
-# (使用bundle版运行一次即完成安装)
 
 USER root
-# 将xmake放入系统PATH，使所有用户可用
 RUN cp /home/builder/xmake /usr/local/bin/xmake && \
     chmod +x /usr/local/bin/xmake
 
-# 切换回builder用户作为容器默认用户
+# 4. 验证编译器版本
+RUN gcc --version && g++ --version
+
 USER builder
\ No newline at end of file