diff --git a/docker/china/ppu.Dockerfile b/docker/china/ppu.Dockerfile
index ba3035e9..9e22f5e4 100644
--- a/docker/china/ppu.Dockerfile
+++ b/docker/china/ppu.Dockerfile
@@ -17,7 +17,7 @@ RUN apt-get update && \
 # Install mineru latest
 RUN python3 -m pip install -U 'mineru[core]' -i https://mirrors.aliyun.com/pypi/simple --break-system-packages && \
     python3 -m pip install numpy==1.26.4 opencv-python==4.11.0.86 huggingface_hub==0.36.0 -i https://mirrors.aliyun.com/pypi/simple --break-system-packages && \
-    pip uninstall -y pynvml
+    pip uninstall -y pynvml && \
     python3 -m pip cache purge
 
 # Download models and update the configuration file