diff --git a/.github/workflows/alpha3-baseline-candidate.yml b/.github/workflows/alpha3-baseline-candidate.yml
index d93e0a1..3a905ca 100644
--- a/.github/workflows/alpha3-baseline-candidate.yml
+++ b/.github/workflows/alpha3-baseline-candidate.yml
@@ -78,7 +78,7 @@ jobs:
       - uses: actions/setup-node@v7
         with: { node-version: 24, cache: npm }
       - run: npm ci
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v8
         with: { pattern: baseline-*, merge-multiple: true, path: candidate }
       - run: npm run benchmark:assemble-canonical -- --fast=candidate/latest-fast.json --fast-csv=candidate/latest-fast.csv --balanced=candidate/latest.json --balanced-csv=candidate/latest.csv --robust=candidate/latest-robust.json --robust-csv=candidate/latest-robust.csv --comparison=candidate/comparison.json --symbologies=candidate/symbologies.json --output=candidate/canonical
       - run: npm run quality:static
diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 8a1a825..00f0827 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -177,7 +177,7 @@ jobs:
       - uses: actions/setup-node@v7
         with: { node-version: 24, cache: npm }
       - run: npm ci
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v8
         with:
           pattern: benchmark-*
           merge-multiple: true
diff --git a/.github/workflows/browser-benchmark.yml b/.github/workflows/browser-benchmark.yml
index 08b240a..be33f16 100644
--- a/.github/workflows/browser-benchmark.yml
+++ b/.github/workflows/browser-benchmark.yml
@@ -73,7 +73,7 @@ jobs:
       - uses: actions/setup-node@v7
         with: { node-version: 20, cache: npm }
       - run: npm ci
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v8
         with:
           pattern: browser-*
           path: browser-artifacts
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ed576ac..f5c37d9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -335,7 +335,7 @@ jobs:
       - uses: actions/setup-node@v7
         with: { node-version: 20, cache: npm }
       - run: npm ci
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v8
         with:
           name: scanner-worker-wasm-soak
           path: benchmark-results/realtime
diff --git a/.github/workflows/native-mobile.yml b/.github/workflows/native-mobile.yml
index d3686d2..b27bfef 100644
--- a/.github/workflows/native-mobile.yml
+++ b/.github/workflows/native-mobile.yml
@@ -227,12 +227,12 @@ jobs:
     needs: [native-core, ios-sdk, android-sdk, native-memory, native-fixture-parity]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v8
         with:
           pattern: '*native*evidence'
           path: evidence
           merge-multiple: true
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v8
         with:
           name: android-aar
           path: artifacts