diff --git a/Dockerfile b/Dockerfile
index 8186c30..bd53662 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM ghcr.io/linuxserver/baseimage-alpine:3.22 as buildstage
+FROM ghcr.io/linuxserver/baseimage-alpine:3.22 AS buildstage
 
 # set version label
 ARG PYTHON_VERSION
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index fd72935..5e465f8 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM ghcr.io/linuxserver/baseimage-alpine:arm64v8-3.22 as buildstage
+FROM ghcr.io/linuxserver/baseimage-alpine:arm64v8-3.22 AS buildstage
 
 # set version label
 ARG PYTHON_VERSION