diff --git a/.github/workflows/benchmark-regression.yml b/.github/workflows/benchmark-regression.yml
index fd052a6..e661d08 100644
--- a/.github/workflows/benchmark-regression.yml
+++ b/.github/workflows/benchmark-regression.yml
@@ -63,7 +63,7 @@ jobs:
         "
 
     - name: Upload benchmark results
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v6
       with:
         name: benchmark-results-${{ matrix.os }}-${{ matrix.node-version }}
         path: benchmark-results/
@@ -216,7 +216,7 @@ jobs:
         node analyze-regressions.js
 
     - name: Upload regression report
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v6
       with:
         name: regression-report
         path: regression-report.md
@@ -320,7 +320,7 @@ jobs:
         node generate-trend.js
 
     - name: Upload trend data
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v6
       with:
         name: performance-trend
         path: performance-trend.csv
diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index d39aafc..170cd4f 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -52,7 +52,7 @@ jobs:
       continue-on-error: true
 
     - name: Upload benchmark results
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       if: always()
       with:
         name: benchmark-results-${{ github.run_number }}
@@ -229,7 +229,7 @@ jobs:
         "
 
     - name: Upload dashboard data
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: grafana-metrics
         path: /tmp/grafana-data.csv
diff --git a/.github/workflows/benchmarks-ci.yml b/.github/workflows/benchmarks-ci.yml
index a8c0b13..86adfba 100644
--- a/.github/workflows/benchmarks-ci.yml
+++ b/.github/workflows/benchmarks-ci.yml
@@ -64,7 +64,7 @@ jobs:
         continue-on-error: true
 
       - name: Upload benchmark results
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v6
         with:
           name: benchmark-results
           path: |
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c2eee20..a22dd61 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -137,7 +137,7 @@ jobs:
         run: npm test -- --coverage --shard=${{ matrix.shard }}/4 --reporter=verbose
 
       - name: Upload coverage reports
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: coverage-shard-${{ matrix.shard }}
           path: coverage/
@@ -145,7 +145,7 @@ jobs:
 
       - name: Upload test results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: test-results-shard-${{ matrix.shard }}
           path: |
@@ -196,7 +196,7 @@ jobs:
           github-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Upload coverage artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: coverage-report
           path: coverage/combined/
@@ -243,7 +243,7 @@ jobs:
           done
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: dist
           path: |
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 53d028c..4ca52cd 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -171,7 +171,7 @@ jobs:
           done
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: release-build
           path: |
@@ -226,7 +226,7 @@ jobs:
           echo "file=release-notes/CHANGELOG.md" >> $GITHUB_OUTPUT
 
       - name: Upload changelog
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: changelog
           path: release-notes/
diff --git a/.github/workflows/smoke-tests.yml b/.github/workflows/smoke-tests.yml
index a4d431b..b3d5416 100644
--- a/.github/workflows/smoke-tests.yml
+++ b/.github/workflows/smoke-tests.yml
@@ -465,7 +465,7 @@ jobs:
 
       - name: Upload test results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: smoke-test-results-${{ inputs.environment || github.event.inputs.environment }}
           path: |