diff --git a/Dockerfile b/Dockerfile
index f4662f6..cd83285 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,8 @@ ARG NB_GID="100"
 ENV CONDA_CUDA_OVERRIDE="12.1"  
 ENV NUM_GPUS=1
 USER root
-RUN apt-get install --yes --no-install-recommends \
+RUN apt-get update --yes && \
+    apt-get install --yes --no-install-recommends \
     ffmpeg  \
     libportaudio2  \
     apt-get clean && rm -rf /var/lib/apt/lists/*