diff --git a/.github/workflows/_docker-build.yml b/.github/workflows/_docker-build.yml
index d36076444746..19dfc210bae6 100644
--- a/.github/workflows/_docker-build.yml
+++ b/.github/workflows/_docker-build.yml
@@ -38,6 +38,8 @@ jobs:
     name: Build server image
     runs-on: ubuntu-22.04
     timeout-minutes: 60
+    outputs:
+      build-id: ${{ steps.build-id.outputs.id }}
     strategy:
       fail-fast: true
       matrix:
@@ -48,6 +50,17 @@ jobs:
             { qemu: "arm64", docker: "linux/arm64" },
           ]
     steps:
+      - name: Create build id
+        id: build-id
+        shell: python
+        run: |
+          import hashlib
+          import os
+
+          hash = hashlib.sha256('''${{ inputs.build-args }}'''.encode())
+          with open(os.environ['GITHUB_OUTPUT'], 'a') as fh:
+              print(f"id={hash.hexdigest()}", file=fh)
+
       - name: Set up QEMU
         if: matrix.platform.qemu != ''
         uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0
@@ -87,7 +100,7 @@ jobs:
       - name: Upload digest
         uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
         with:
-          name: digests
+          name: digests-${{ steps.build-id.outputs.id }}
           path: /tmp/digests/*
           if-no-files-found: error
           retention-days: 1
@@ -103,7 +116,7 @@ jobs:
       - name: Download digests
         uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
         with:
-          name: digests
+          name: digests-${{ needs.build.outputs.build-id }}
           path: /tmp/digests
 
       - name: Docker meta
diff --git a/.github/workflows/docker-base.yml b/.github/workflows/docker-base.yml
index 7b23340ec7d2..fe276585a3bd 100644
--- a/.github/workflows/docker-base.yml
+++ b/.github/workflows/docker-base.yml
@@ -43,9 +43,9 @@ jobs:
     uses: ./.github/workflows/_docker-build.yml
     needs: parameters
     strategy:
-      fail-fast: true
+      fail-fast: false
       matrix:
-        python-version: [3.8, 3.9, 3.10, 3.11]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
     with:
       namespace-repository: flwr/base
       file-dir: src/docker/base