diff --git a/.github/workflows/build_container.yml b/.github/workflows/build_container.yml
index caf40ba..567e22c 100644
--- a/.github/workflows/build_container.yml
+++ b/.github/workflows/build_container.yml
@@ -25,13 +25,13 @@ jobs:
           set -x
           cd container
           if [ ${{ matrix.host }} = ${{ matrix.target }} ]; then
-            podman build --build-arg arch=${{ matrix.host }} -f build.containerfile -t ghcr.io/${{ github.repository }}/host-${{ matrix.host }}/target-${{ matrix.target }}:${{ inputs.version }} .
+            podman build --squash-all --build-arg arch=${{ matrix.host }} -f build.containerfile -t ghcr.io/${{ github.repository }}/host-${{ matrix.host }}/target-${{ matrix.target }}:${{ inputs.version }} .
           else
             case ${{ matrix.target }} in
               amd64) gnu_arch=x86-64 ;;
               arm64v8) gnu_arch=aarch64 ;;
             esac
-            podman build --build-arg native_arch=${{ matrix.host }} --build-arg target_arch=${{ matrix.target }} --build-arg gnu_arch=$gnu_arch -f crossbuild.containerfile -t ghcr.io/${{ github.repository }}/host-${{ matrix.host }}/target-${{ matrix.target }}:${{ inputs.version }} .
+            podman build --squash-all --build-arg native_arch=${{ matrix.host }} --build-arg target_arch=${{ matrix.target }} --build-arg gnu_arch=$gnu_arch -f crossbuild.containerfile -t ghcr.io/${{ github.repository }}/host-${{ matrix.host }}/target-${{ matrix.target }}:${{ inputs.version }} .
           fi
       - name: publish
         if: ${{ inputs.publish }}