diff --git a/hetzner-debian10-zfs-setup.sh b/hetzner-debian10-zfs-setup.sh
index 55a1bcd..79957ab 100644
--- a/hetzner-debian10-zfs-setup.sh
+++ b/hetzner-debian10-zfs-setup.sh
@@ -40,7 +40,7 @@ c_deb_security_repo=http://mirror.hetzner.de/debian/security
 
 c_default_zfs_arc_max_mb=250
 c_default_bpool_tweaks="-o ashift=12 -O compression=lz4"
-c_default_rpool_tweaks="-o ashift=12 -O acltype=posixacl -O compression=lz4 -O dnodesize=auto -O relatime=on -O xattr=sa -O normalization=formD"
+c_default_rpool_tweaks="-o ashift=12 -O acltype=posixacl -O compression=zstd-9 -O dnodesize=auto -O relatime=on -O xattr=sa -O normalization=formD"
 c_default_hostname=terem
 c_zfs_mount_dir=/mnt
 c_log_dir=$(dirname "$(mktemp)")/zfs-hetzner-vm
diff --git a/hetzner-ubuntu18-zfs-setup.sh b/hetzner-ubuntu18-zfs-setup.sh
index edb14b5..f64ab31 100644
--- a/hetzner-ubuntu18-zfs-setup.sh
+++ b/hetzner-ubuntu18-zfs-setup.sh
@@ -40,7 +40,7 @@ c_deb_security_repo=http://mirror.hetzner.de/ubuntu/security
 
 c_default_zfs_arc_max_mb=250
 c_default_bpool_tweaks="-o ashift=12 -O compression=lz4"
-c_default_rpool_tweaks="-o ashift=12 -O acltype=posixacl -O compression=lz4 -O dnodesize=auto -O relatime=on -O xattr=sa -O normalization=formD"
+c_default_rpool_tweaks="-o ashift=12 -O acltype=posixacl -O compression=zstd-9 -O dnodesize=auto -O relatime=on -O xattr=sa -O normalization=formD"
 c_default_hostname=terem
 c_zfs_mount_dir=/mnt
 c_log_dir=$(dirname "$(mktemp)")/zfs-hetzner-vm
diff --git a/hetzner-ubuntu20-zfs-setup.sh b/hetzner-ubuntu20-zfs-setup.sh
index 1f4b6f2..5343422 100644
--- a/hetzner-ubuntu20-zfs-setup.sh
+++ b/hetzner-ubuntu20-zfs-setup.sh
@@ -40,7 +40,7 @@ c_deb_security_repo=http://mirror.hetzner.de/ubuntu/security
 
 c_default_zfs_arc_max_mb=250
 c_default_bpool_tweaks="-o ashift=12 -O compression=lz4"
-c_default_rpool_tweaks="-o ashift=12 -O acltype=posixacl -O compression=lz4 -O dnodesize=auto -O relatime=on -O xattr=sa -O normalization=formD"
+c_default_rpool_tweaks="-o ashift=12 -O acltype=posixacl -O compression=zstd-9 -O dnodesize=auto -O relatime=on -O xattr=sa -O normalization=formD"
 c_default_hostname=terem
 c_zfs_mount_dir=/mnt
 c_log_dir=$(dirname "$(mktemp)")/zfs-hetzner-vm