diff --git a/Dockerfile b/Dockerfile
index f07b65b9..1cfb0e5a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,9 @@ ARG PHP_VERSION=8.4
 # ---
 # Build assets stage - runs on native platform (not emulated)
 # This stage builds the frontend assets (JavaScript, CSS) using Node.js and Yarn
-FROM composer:latest AS composer-deps
+# The --platform=$BUILDPLATFORM ensures this stage runs on the native build platform (amd64)
+# and not under emulation for ARM builds
+FROM --platform=$BUILDPLATFORM composer:latest AS composer-deps
 
 WORKDIR /build
 
@@ -19,7 +21,7 @@ RUN composer install --no-dev --no-scripts --no-autoloader --prefer-dist --ignor
 
 # ---
 
-FROM node:22-bookworm-slim AS assets
+FROM --platform=$BUILDPLATFORM node:22-bookworm-slim AS assets
 
 WORKDIR /build
 
diff --git a/Dockerfile-frankenphp b/Dockerfile-frankenphp
index ba4b01db..0f523189 100644
--- a/Dockerfile-frankenphp
+++ b/Dockerfile-frankenphp
@@ -1,7 +1,9 @@
 # ---
 # Build assets stage - runs on native platform (not emulated)
 # This stage builds the frontend assets (JavaScript, CSS) using Node.js and Yarn
-FROM composer:latest AS composer-deps
+# The --platform=$BUILDPLATFORM ensures this stage runs on the native build platform (amd64)
+# and not under emulation for ARM builds
+FROM --platform=$BUILDPLATFORM composer:latest AS composer-deps
 
 WORKDIR /build
 
@@ -16,7 +18,7 @@ RUN composer install --no-dev --no-scripts --no-autoloader --prefer-dist --ignor
 
 # ---
 
-FROM node:22-bookworm-slim AS assets
+FROM --platform=$BUILDPLATFORM node:22-bookworm-slim AS assets
 
 WORKDIR /build