diff --git a/.github/workflows/governance-gate.yml b/.github/workflows/governance-gate.yml
index 666dfc0..9f19b6d 100644
--- a/.github/workflows/governance-gate.yml
+++ b/.github/workflows/governance-gate.yml
@@ -52,7 +52,7 @@ jobs:
         run: python tools/ci/aggregate_int.py
       - name: Upload INT metrics
         if: steps.changes.outputs.code == 'true'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: int-metrics
           path: tools/ci/int-metrics.json
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 654e9f7..f63120a 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -85,7 +85,7 @@ jobs:
         # Generate CycloneDX SBOM from requirements.txt for supply chain visibility
         run: python -m tools.security.generate_sbom --output .ga/sbom.json
       - name: Upload SBOM artifact
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: sbom-cyclonedx
           path: .ga/sbom.json
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 41af099..86ba734 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -41,7 +41,7 @@ jobs:
           else
             echo "{\"name\":\"lint\",\"status\":\"skip\",\"duration_ms\":0}" >> workflow-cookbook/logs/test.jsonl
           fi
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         if: ${{ always() }}
         with:
           name: test-logs-${{ github.job }}
@@ -75,7 +75,7 @@ jobs:
           else
             echo "{\"name\":\"typecheck\",\"status\":\"skip\",\"duration_ms\":0}" >> workflow-cookbook/logs/test.jsonl
           fi
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         if: ${{ always() }}
         with:
           name: test-logs-${{ github.job }}
@@ -164,7 +164,7 @@ jobs:
 
       - name: Upload logs
         if: ${{ always() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: test-logs-${{ github.job }}
           path: 'workflow-cookbook/logs/*'
@@ -198,13 +198,13 @@ jobs:
           else
             echo "{\"name\":\"build\",\"status\":\"skip\",\"duration_ms\":0}" >> workflow-cookbook/logs/test.jsonl
           fi
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         if: ${{ always() }}
         with:
           name: build-output
           path: dist/**
           if-no-files-found: ignore
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         if: ${{ always() }}
         with:
           name: test-logs-${{ github.job }}
@@ -238,7 +238,7 @@ jobs:
           npx playwright install --with-deps
           if npm run -s test:e2e; then s=pass; else s=fail; fi
           echo "{\"name\":\"e2e\",\"status\":\"$s\",\"duration_ms\":$(( $(date +%s%3N)-start ))}" >> workflow-cookbook/logs/test.jsonl
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         if: ${{ always() }}
         with:
           name: test-logs-${{ github.job }}