diff --git a/Dockerfile b/Dockerfile
index 070ad9b..5e80a8a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -42,7 +42,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 
 # ── 安装自编 torch 轮子 ──────────────────────────────────────────────────────
 COPY --from=builder-torch /opt/pytorch/dist /tmp/torch_dist
-RUN python3 -m pip install --no-cache-dir /tmp/torch_dist/torch-2.7.1+cu126*.whl && rm -rf /tmp/torch_dist
+RUN sh -c 'python3 -m pip install --no-cache-dir /tmp/torch_dist/torch-2.7.1+cu126*.whl' && rm -rf /tmp/torch_dist
+
 
 # ── 编译 torchvision 0.22.1 (依赖本地 torch) ────────────────────────────────
 WORKDIR /opt