diff --git a/.github/workflows/free-tests.yml b/.github/workflows/free-tests.yml
index 5a51c9a68..aff850978 100644
--- a/.github/workflows/free-tests.yml
+++ b/.github/workflows/free-tests.yml
@@ -62,7 +62,7 @@ jobs:
       - name: Seed growth ratchet (60 s ceiling, shrink-only allowlist)
         run: |
           GSTACK_FREE_SEED_BASE="$(git merge-base HEAD origin/main)" bun test test/free-seed-ratchet.test.ts
-      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
+      - uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7
         with:
           name: free-plan
           path: ${{ runner.temp }}/free-plan.json
@@ -171,7 +171,7 @@ jobs:
           GSTACK_CSO_WINDOWS_TESTS: "1"
       - name: Upload #2894 lease diagnostics
         if: failure()
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7
         with:
           name: cso-lease-diagnostics-a${{ github.run_attempt }}
           path: ${{ runner.temp }}/cso-lease-diagnostics
@@ -298,7 +298,7 @@ jobs:
         with:
           bun-version: 1.4.2
 
-      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
+      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8
         with:
           name: free-plan
           path: ${{ runner.temp }}
@@ -409,7 +409,7 @@ jobs:
 
       - name: Upload strict shard result
         if: always()
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7
         with:
           name: free-result-${{ matrix.shard }}
           path: ${{ runner.temp }}/free-results/*.json
@@ -419,7 +419,7 @@ jobs:
       # GREEN — that's the point — so its evidence must survive green runs.
       - name: Upload flake ledger
         if: always()
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7
         with:
           name: flake-ledger-${{ matrix.shard }}
           path: ${{ runner.temp }}/flake-ledger.jsonl
@@ -438,7 +438,7 @@ jobs:
       # after a recovered retry too, so a green job retains its first failure.
       - name: Upload shard logs on failure or recovered retry
         if: failure() || steps.flake_spool.outputs.present == 'true'
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7
         with:
           name: free-test-shard-logs-${{ matrix.shard }}
           path: .context/free-test-logs/gstack-free-test-*.log
@@ -478,11 +478,11 @@ jobs:
       - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2
         with:
           bun-version: 1.4.2
-      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
+      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8
         with:
           name: free-plan
           path: ${{ runner.temp }}
-      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
+      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8
         with:
           pattern: free-result-*
           merge-multiple: true
@@ -490,7 +490,7 @@ jobs:
       # Per-shard ledgers land in their own subdirectories (all are named
       # flake-ledger.jsonl). A green run is where a retried flake hides, so the
       # summary runs before strict verification.
-      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
+      - uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8
         with:
           pattern: flake-ledger-*
           path: ${{ runner.temp }}/flake-ledgers