diff --git a/.github/workflows/publish-image.yml b/.github/workflows/publish-image.yml
index bb425d0..a7bc20b 100644
--- a/.github/workflows/publish-image.yml
+++ b/.github/workflows/publish-image.yml
@@ -39,7 +39,11 @@ jobs:
         with:
           context: .
           file: apps/server/Dockerfile
-          platforms: linux/amd64,linux/arm64
+          # amd64 only: matches the deployment target (Coolify host) and builds
+          # natively on the GitHub runner. The linux/arm64 leg required QEMU
+          # emulation that, on a lockfile cache-miss, took 40+ min; re-add it with
+          # a dedicated arm64 runner or warmed cache if arm64 images are needed.
+          platforms: linux/amd64
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}