diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ce0ebe4..6ddedf5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,8 +16,8 @@ default:
       alias: 'dockerd'
 
 .cmds:
-  - &cmd_install_build_packages 'apk add --no-cache coreutils git m4 make xz'
-  - &cmd_install_push_packages  'apk add --no-cache coreutils git make xz'
+  - &cmd_install_build_packages 'apk add --no-cache coreutils git m4 make zstd'
+  - &cmd_install_push_packages  'apk add --no-cache coreutils git make zstd'
   - &cmd_docker_login_registry  'docker login -u "${CI_REGISTRY_USER:?}" -p "${CI_REGISTRY_PASSWORD:?}" "${CI_REGISTRY:?}"'
 
 .regexes:
diff --git a/Makefile b/Makefile
index 235c9f6..a7e468b 100755
--- a/Makefile
+++ b/Makefile
@@ -24,16 +24,16 @@ endif
 IMAGE_BUILD_OPTS :=
 
 IMAGE_NATIVE_DOCKERFILE := $(DISTDIR)/Dockerfile
-IMAGE_NATIVE_TARBALL := $(DISTDIR)/$(IMAGE_PROJECT).txz
+IMAGE_NATIVE_TARBALL := $(DISTDIR)/$(IMAGE_PROJECT).tzst
 
 IMAGE_AMD64_DOCKERFILE := $(DISTDIR)/Dockerfile.amd64
-IMAGE_AMD64_TARBALL := $(DISTDIR)/$(IMAGE_PROJECT).amd64.txz
+IMAGE_AMD64_TARBALL := $(DISTDIR)/$(IMAGE_PROJECT).amd64.tzst
 
 IMAGE_ARM64V8_DOCKERFILE := $(DISTDIR)/Dockerfile.arm64v8
-IMAGE_ARM64V8_TARBALL := $(DISTDIR)/$(IMAGE_PROJECT).arm64v8.txz
+IMAGE_ARM64V8_TARBALL := $(DISTDIR)/$(IMAGE_PROJECT).arm64v8.tzst
 
 IMAGE_ARM32V7_DOCKERFILE := $(DISTDIR)/Dockerfile.arm32v7
-IMAGE_ARM32V7_TARBALL := $(DISTDIR)/$(IMAGE_PROJECT).arm32v7.txz
+IMAGE_ARM32V7_TARBALL := $(DISTDIR)/$(IMAGE_PROJECT).arm32v7.tzst
 
 ##################################################
 ## "all" target
@@ -114,7 +114,7 @@ $(IMAGE_ARM32V7_DOCKERFILE): $(DOCKERFILE_TEMPLATE)
 ##################################################
 
 define save_image
-	'$(DOCKER)' save '$(1)' | xz -T0 > '$(2)'
+	'$(DOCKER)' save '$(1)' | zstd -T0 -1 > '$(2)'
 endef
 
 .PHONY: save-native-image
@@ -149,7 +149,7 @@ $(IMAGE_ARM32V7_TARBALL): $(IMAGE_ARM32V7_DOCKERFILE)
 ##################################################
 
 define load_image
-	'$(DOCKER)' load -i '$(1)'
+	zstd -dc '$(1)' | '$(DOCKER)' load
 endef
 
 define tag_image