diff --git a/hardware.Dockerfile b/hardware.Dockerfile
index 238ede69..0aa85374 100644
--- a/hardware.Dockerfile
+++ b/hardware.Dockerfile
@@ -53,7 +53,8 @@ RUN --mount=type=cache,target=/var/cache/apt,sharing=locked --mount=type=cache,t
         python3 curl jq \
         intel-media-va-driver-non-free \
         mesa-va-drivers \
-        libasound2-plugins
+        libasound2-plugins && \
+    apt-get clean && rm -rf /var/lib/apt/lists/*
 
 COPY --link --from=rootfs / /