diff --git a/.github/workflows/deploy-images-feat-saas.yml b/.github/workflows/deploy-images-feat-saas.yml
index d287670f3..a666430f7 100644
--- a/.github/workflows/deploy-images-feat-saas.yml
+++ b/.github/workflows/deploy-images-feat-saas.yml
@@ -20,6 +20,11 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Set up QEMU (for multi-arch emulation)
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
+
       - name: Set up Docker Buildx (multiarch)
         uses: docker/setup-buildx-action@v3
         with:
@@ -67,4 +72,4 @@ jobs:
             docker compose down
             docker compose pull
             docker compose up -d
-            docker system prune -af
\ No newline at end of file
+            docker system prune -af
diff --git a/server/Dockerfile b/server/Dockerfile
index 354074630..7abde1c67 100644
--- a/server/Dockerfile
+++ b/server/Dockerfile
@@ -14,7 +14,9 @@ RUN npm run build
 FROM --platform=$TARGETPLATFORM node:${NODE_VERSION}-alpine AS deps
 WORKDIR /app
 COPY package*.json ./
-RUN npm ci --omit=dev
+# For arm64 under QEMU, alpine + musl can trigger Illegal instruction with npm ci.
+# Use npm install for broader compatibility.
+RUN npm install --omit=dev
 
 ## Runtime image (target platform)
 FROM --platform=$TARGETPLATFORM node:${NODE_VERSION}-alpine