diff --git a/fetch-platform-rootfs b/fetch-platform-rootfs
index c276465..a868efb 100755
--- a/fetch-platform-rootfs
+++ b/fetch-platform-rootfs
@@ -10,8 +10,8 @@ case $TARGETPLATFORM in
 		;;
   esac
 
-DOWNLOAD="https://github.com/just-containers/s6-overlay/releases/download/$S6_OVERLAY_VERSION/s6-overlay-$ARCH.tar.gz"
+DOWNLOAD="https://github.com/just-containers/s6-overlay/releases/download/$S6_OVERLAY_VERSION/s6-overlay-$ARCH.tar.xz"
 wget "$DOWNLOAD"
 
-sha256_name=SHA256_$ARCH && echo "${!sha256_name}  /s6-overlay-$ARCH.tar.gz" | sha256sum -c - || exit 1
-mv /s6-overlay-$ARCH.tar.gz /s6-overlay.tar.gz
+sha256_name=SHA256_$ARCH && echo "${!sha256_name}  /s6-overlay-$ARCH.tar.xz" | sha256sum -c - || exit 1
+mv /s6-overlay-$ARCH.tar.xz /s6-overlay.tar.xz