diff --git a/ci/amd64/debian/build.amd64-debian.pkr.hcl b/ci/amd64/debian/build.amd64-debian.pkr.hcl
index 2b7220912..45b5b4ece 100644
--- a/ci/amd64/debian/build.amd64-debian.pkr.hcl
+++ b/ci/amd64/debian/build.amd64-debian.pkr.hcl
@@ -1,13 +1,5 @@
-packer {
-  required_version = ">= 1.7.0, < 2.0.0"
-
-  required_plugins {
-    qemu = {
-      source  = "github.com/hashicorp/qemu"
-      version = ">= 1.0.0, < 2.0.0"
-    }
-  }
-}
+variable "iso_name" { default = "debian-12.4.0-amd64-netinst.iso" }
+variable "iso_checksum" { default = "64d727dd5785ae5fcfd3ae8ffbede5f40cca96f1580aaa2820e8b99dae989d94" }
 
 variable "pack" { default = "lean" }
 variable "github_user" { default = "raspiblitz" }
@@ -18,9 +10,6 @@ variable "boot" { default = "uefi" }
 variable "preseed_file" { default = "preseed.cfg" }
 variable "hostname" { default = "raspiblitz-amd64" }
 
-variable "iso_name" { default = "debian-12.2.0-amd64-netinst.iso" }
-variable "iso_checksum" { default = "23ab444503069d9ef681e3028016250289a33cc7bab079259b73100daee0af66" }
-
 variable "disk_size" { default = "30000" }
 variable "memory" { default = "4096" }
 variable "cpus" { default = "4" }
@@ -113,3 +102,14 @@ build {
     ]
   }
 }
+
+packer {
+  required_version = ">= 1.7.0, < 2.0.0"
+
+  required_plugins {
+    qemu = {
+      source  = "github.com/hashicorp/qemu"
+      version = ">= 1.0.0, < 2.0.0"
+    }
+  }
+}