diff --git a/.github/workflows/labeling.yml b/.github/workflows/labeling.yml
index 5967d353..4f4f2ac5 100644
--- a/.github/workflows/labeling.yml
+++ b/.github/workflows/labeling.yml
@@ -105,7 +105,7 @@ jobs:
           node scripts/agents/includes/report-writer.js > .github/reports/labeling/${{ github.run_id }}.md
 
       - name: Upload report artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: labeling-report-${{ github.run_id }}
           path: .github/reports/labeling/${{ github.run_id }}.md
diff --git a/.github/workflows/metrics.yml b/.github/workflows/metrics.yml
index 088edfd9..19913e1a 100644
--- a/.github/workflows/metrics.yml
+++ b/.github/workflows/metrics.yml
@@ -31,14 +31,14 @@ jobs:
         run: npm run metrics:ci
 
       - name: Upload JSON artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: frontmatter-metrics-json
           path: metrics/out/frontmatter-metrics.json
           if-no-files-found: warn
 
       - name: Upload Markdown report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: frontmatter-metrics-md
           path: metrics/out/frontmatter-metrics.md