diff --git a/.gitea/workflows/merge.yaml b/.gitea/workflows/merge.yaml
index afd9b0c..c78bb80 100644
--- a/.gitea/workflows/merge.yaml
+++ b/.gitea/workflows/merge.yaml
@@ -11,6 +11,9 @@ jobs:
   merge-docker-manifest:
     runs-on: ubuntu-latest
     steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
@@ -18,7 +21,9 @@ jobs:
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Create manifest images
-        run: docker manifest create ${{ vars.DOCKERHUB_REPO }}:latest ${{ vars.DOCKERHUB_REPO }}:latest-amd64 ${{ vars.DOCKERHUB_REPO }}:latest-arm64
+        run: docker manifest create ${{ vars.DOCKERHUB_REPO }}:latest \
+             --amend ${{ vars.DOCKERHUB_REPO }}:latest-amd64 \
+             --amend ${{ vars.DOCKERHUB_REPO }}:latest-arm64
 
       - name: Push manifest images
-        run: docker manifest push ${{ vars.DOCKERHUB_REPO }}:latest
+        run: docker manifest push --purge ${{ vars.DOCKERHUB_REPO }}:latest