diff --git a/Dockerfile b/Dockerfile
index 6b0b570..68fad05 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -91,5 +91,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 COPY --from=builder-extras /wheels /tmp/wheels
 RUN python3 -m pip install --no-cache-dir /tmp/wheels/* && rm -rf /tmp/wheels
 
+# 安装运行时漏掉的依赖
+RUN python3 -m pip install --no-cache-dir pydantic
+
 # 仅做 CI / CPU 自检 —— 输出帮助后退出 0
 CMD ["python3", "-m", "sglang.launch_server", "--help"]