diff --git a/.github/workflows/perf-calibration.yml b/.github/workflows/perf-calibration.yml
index 3b1e25e..3e509d0 100644
--- a/.github/workflows/perf-calibration.yml
+++ b/.github/workflows/perf-calibration.yml
@@ -76,7 +76,7 @@ jobs:
           else
             node experiments/perf-calibration/analyze.mjs | tee -a "$GITHUB_STEP_SUMMARY"
           fi
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: perf-calibration-data
           path: experiments/perf-calibration/data/
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ae23f4c..42a4e4a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -635,7 +635,7 @@ jobs:
           echo "Collected ${#logs[@]} npm debug log(s)."
       - name: Upload the npm debug log
         if: ${{ failure() && steps.npm-log.outputs.collected == 'true' }}
-        uses: actions/upload-artifact@v7
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ steps.npm-log.outputs.artifact-name }}
           path: ${{ runner.temp }}/npm-debug-logs/*.log