diff --git a/.github/workflows/obs-delete-check.yml b/.github/workflows/obs-delete-check.yml
index 318fad607..043ea5a1e 100644
--- a/.github/workflows/obs-delete-check.yml
+++ b/.github/workflows/obs-delete-check.yml
@@ -42,7 +42,7 @@ jobs:
         run: python3 -u .github/scripts/obs_release_retention.py
       - name: Save deletion evidence and exact retention plan
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: obs-retention-acceptance
           path: |
diff --git a/.github/workflows/obs-release-retention.yml b/.github/workflows/obs-release-retention.yml
index 39bfff68e..c2cca1d24 100644
--- a/.github/workflows/obs-release-retention.yml
+++ b/.github/workflows/obs-release-retention.yml
@@ -47,7 +47,7 @@ jobs:
           python3 -u .github/scripts/obs_release_retention.py "${args[@]}"
       - name: Save exact retention plan
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: obs-retention-plan
           path: retention-plan.json
diff --git a/.github/workflows/obs-sync-debug.yml b/.github/workflows/obs-sync-debug.yml
index f550a610d..6718ab691 100644
--- a/.github/workflows/obs-sync-debug.yml
+++ b/.github/workflows/obs-sync-debug.yml
@@ -37,7 +37,7 @@ jobs:
               raise SystemExit('No formal release assets')
           print(f"Resolved {release['tag_name']}: {len(release['assets'])} assets")
           PY
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         with:
           name: resolved-debug-release
           path: resolved-release.json
@@ -92,7 +92,7 @@ jobs:
           python3 -u .github/scripts/obs_sync_debug.py 2>&1 | tee diagnostic.log
       - name: Save non-sensitive diagnostic log
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: obs-debug-log
           path: diagnostic.log
diff --git a/.github/workflows/release-to-obs.yml b/.github/workflows/release-to-obs.yml
index e16008c98..2d443d4ed 100644
--- a/.github/workflows/release-to-obs.yml
+++ b/.github/workflows/release-to-obs.yml
@@ -82,7 +82,7 @@ jobs:
           python3 -u .github/scripts/release_to_obs.py 2>&1 | tee production-sync.log
       - name: Save synchronization evidence and original latest pointer
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: obs-production-sync
           path: |