diff --git a/Dockerfile b/Dockerfile
index cd83285..33112e1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ USER root
 RUN apt-get update --yes && \
     apt-get install --yes --no-install-recommends \
     ffmpeg  \
-    libportaudio2  \
+    libportaudio2  && \
     apt-get clean && rm -rf /var/lib/apt/lists/* 
 USER $NB_UID
 RUN CONDA_OVERRIDE_CUDA="12.1" conda install pytorch torchvision torchaudio pytorch-cuda=12.1 -c pytorch -c nvidia
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