diff --git a/Dockerfile b/Dockerfile
index 68c188f..cda7262 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -71,6 +71,15 @@ WORKDIR /opt/flashinfer
 RUN pip install . && \
     python3 -m pip wheel . --no-deps -w dist/
 
+
+# builder-extras 阶段，vllm 安装加上 WORKDIR（放在 flashinfer 后）
+WORKDIR /opt
+RUN git clone -b v0.4.2 https://github.com/vllm-project/vllm.git && \
+    cd vllm && \
+    python3 -m pip install ".[triton]" --no-build-isolation && \
+    python3 -m pip wheel . --no-deps -w /tmp/vllm_wheels
+
+
 # ── 编译你本地 sglang 源码并打 wheel ───────────────────────────────────────
 COPY ./sglang /sgl/sglang
 WORKDIR /sgl/sglang/python
@@ -82,6 +91,7 @@ RUN mkdir -p /wheels && \
     cp /tmp/torch_dist/torch*.whl /wheels/ && \
     cp /opt/vision/dist/torchvision-*.whl /wheels/ && \
     cp /opt/flashinfer/dist/flashinfer_python-*.whl /wheels/ && \
+    cp /tmp/vllm_wheels/vllm-*.whl /wheels/ && \
     cp /tmp/sg_wheels/sglang-*.whl /wheels/
 
 ###############################################################################
@@ -94,7 +104,7 @@ ENV DEBIAN_FRONTEND=noninteractive PYTHONUNBUFFERED=1 LANG=C.UTF-8 LC_ALL=C.UTF-
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
         python3 python3-pip python3-distutils ca-certificates \
-        libopenblas-dev libgomp1 libcupti-dev libnuma1 libopenmpi-dev openmpi-bin libnuma-dev && \
+        libopenblas-dev libgomp1 libcupti-dev libnuma1 libopenmpi-dev openmpi-bin libnuma-dev libpng16-16 && \
     rm -rf /var/lib/apt/lists/* && \
     python3 -m pip install --no-cache-dir --upgrade pip