diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 082e3b0..95e22b0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -95,6 +95,15 @@ jobs:
           mkdir -p /tmp/digests
           digest="${{ steps.build.outputs.digest }}"
           touch "/tmp/digests/${digest#sha256:}"
+        shell: bash
+
+      - name: Sanitize platform string
+        id: platform
+        env:
+          PLATFORM_STRING: ${{ matrix.platform }}
+        run: |
+          echo "value=${PLATFORM_STRING//\//_}" >> $GITHUB_OUTPUT
+        shell: bash
 
       - name: Upload digest
         if: needs.prepare.outputs.push == 'true'
@@ -116,10 +125,15 @@ jobs:
       packages: write
     steps:
       - name: Download digests
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
-          name: digests
-          path: /tmp/digests
+          path: artifacts
+
+      - name: Merge artifacts
+        run: |
+          mkdir /tmp/digests
+          mv artifacts/*/* /tmp/digests
+        shell: bash
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3