diff --git a/Dockerfile b/Dockerfile
index 8b9c70c..393d4a1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 ARG VERSION_ARG="latest"
 FROM scratch AS build-amd64
 
-COPY --from=qemux/qemu:7.02 / /
+COPY --from=qemux/qemu:7.03 / /
 
 ARG DEBCONF_NOWARNINGS="yes"
 ARG DEBIAN_FRONTEND="noninteractive"
diff --git a/src/define.sh b/src/define.sh
index 80d1dfe..1fbfcda 100644
--- a/src/define.sh
+++ b/src/define.sh
@@ -17,7 +17,6 @@ set -Eeuo pipefail
 : "${PASSWORD:=""}"
 
 MIRRORS=3
-PLATFORM="x64"
 
 parseVersion() {
 
diff --git a/src/entry.sh b/src/entry.sh
index 0095773..17b2147 100644
--- a/src/entry.sh
+++ b/src/entry.sh
@@ -2,6 +2,7 @@
 set -Eeuo pipefail
 
 : "${APP:="Windows"}"
+: "${PLATFORM:="x64"}"
 : "${BOOT_MODE:="windows"}"
 : "${SUPPORT:="https://github.com/dockur/windows"}"