diff --git a/Dockerfile b/Dockerfile
index c5281e8..c104085 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -72,9 +72,11 @@ RUN pip install . && \
     python3 -m pip wheel . --no-deps -w dist/
 
 
-# builder-extras 阶段，vllm 安装（兼容 torch 2.7.1）
+# builder-extras 阶段：补充工具链 + 安装 vllm
 WORKDIR /opt
-RUN pip install setuptools_scm && \
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ninja-build cmake build-essential python3-dev git && \
+    pip install setuptools wheel setuptools_scm && \
     git clone -b v0.9.1 https://github.com/vllm-project/vllm.git && \
     cd vllm && \
     python3 -m pip install . --no-build-isolation --no-deps && \