diff --git a/runtime/Dockerfile b/runtime/Dockerfile
index 9d427a4..874b312 100644
--- a/runtime/Dockerfile
+++ b/runtime/Dockerfile
@@ -18,7 +18,7 @@ RUN uv venv --python 3.12 /opt/venv/python3.12 && \
 
 RUN uv venv --python 3.8 /opt/venv/python3.8 && \
     UV_DEFAULT_INDEX="https://pypi.tuna.tsinghua.edu.cn/simple/" uv pip install --python /opt/venv/python3.8/bin/python -r extras/requirements-py38 && \
-    /opt/venv/python3.8/bin/python -m ipykernel install --prefix=/opt/venv/python3.12 --name=python38 --display-name="python3.8" --sys-prefix
+    /opt/venv/python3.8/bin/python -m ipykernel install --prefix=/opt/venv/python3.12 --name=python38 --display-name="python3.8"
 
 RUN uv venv --python 3.10 /opt/venv/python3.10 && \
     UV_DEFAULT_INDEX="https://pypi.tuna.tsinghua.edu.cn/simple/" uv pip install --python /opt/venv/python3.10/bin/python -r extras/requirements-py310 && \