diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 300ade1..b3b29ac 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,35 +1,52 @@
 name: release
 
 on:
-    push:
-      tags: "*"
+  push:
+    branches: [ tt/5/switch-to-ghcr ]
 
-jobs:
-    release:
-        runs-on: ubuntu-latest
-        steps:
-            - name: Checkout repo
-              uses: actions/checkout@v4
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: taudem
 
-            - name: Set SHA_TAG
-              run: |
-                echo "SHA_TAG=`git rev-parse --short HEAD`" >> $GITHUB_ENV
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    
+    permissions:
+      contents: read
+      packages: write
+      attestations: write
+      id-token: write
+    
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
 
-            - name: Setup Docker Buildx
-              uses: docker/setup-buildx-action@v3
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
 
-            - name: Login to Quay
-              uses: docker/login-action@v3
-              with:
-                registry: quay.io
-                username: ${{ secrets.QUAY_USERNAME }}
-                password: ${{ secrets.QUAY_PASSWORD }}
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
-            - name: Build and push
-              uses: docker/build-push-action@v6
-              with:
-                push: true
-                tags: |
-                  quay.io/wikiwatershed/taudem:${SHA_TAG}
-                  quay.io/wikiwatershed/taudem:${{ github.ref_name }}
-                  quay.io/wikiwatershed/taudem:latest
+      - name: Build and push
+        id: push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+      
+      - name: Generate artifact attestation
+        uses: actions/attest-build-provenance@v1
+        with:
+          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME}}
+          subject-digest: ${{ steps.push.outputs.digest }}
+          push-to-registry: true