diff --git a/docker/Dockerfile b/docker/Dockerfile
index 2010f19..e788813 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -303,8 +303,8 @@ RUN set -ex && \
 # ===========================================================================
 RUN set -ex && \
     export http_proxy=${GIT_PROXY} https_proxy=${GIT_PROXY} && \
-    ${VENV}/bin/pip install 'mineru[core]' click gradio httpx && \
-    ${VENV}/bin/python -c "import torch; import vllm; import mineru; import click; import gradio; import httpx; print('MinerU + Gradio + httpx imports OK')" && \
+    ${VENV}/bin/pip install 'mineru[core]' click gradio httpx cbor2 && \
+    ${VENV}/bin/python -c "import torch; import vllm; import mineru; import click; import gradio; import httpx; import cbor2; print('MinerU + Gradio + httpx + cbor2 imports OK')" && \
     ${VENV}/bin/mineru-gradio --help >/dev/null
 
 # ===========================================================================