diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4ce49da..c91bdd6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -107,7 +107,7 @@ jobs:
 
       - name: Upload test results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: test-results-node-${{ matrix.node-version }}
           path: test-results/
@@ -150,7 +150,7 @@ jobs:
 
       - name: Upload coverage reports
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: coverage-reports
           path: |
@@ -193,7 +193,7 @@ jobs:
           fi
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: build-artifacts
           path: dist/
diff --git a/.github/workflows/llm-benchmark.yml b/.github/workflows/llm-benchmark.yml
index 8e5bb3b..021a3f5 100644
--- a/.github/workflows/llm-benchmark.yml
+++ b/.github/workflows/llm-benchmark.yml
@@ -76,7 +76,7 @@ jobs:
             --output benchmark-dashboard.html
 
       - name: Upload benchmark results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: always()
         with:
           name: benchmark-results-${{ github.run_number }}
@@ -163,7 +163,7 @@ jobs:
             --output cost-optimization-report.json
 
       - name: Upload optimization report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: cost-optimization-${{ github.run_number }}
           path: cost-optimization-report.json
diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index b3cf9ac..1991d23 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -70,7 +70,7 @@ jobs:
         run: strip target/${{ matrix.target }}/release/${{ matrix.artifact_name }}
 
       - name: Upload binary
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v5
         with:
           name: ${{ matrix.target }}
           path: target/${{ matrix.target }}/release/${{ matrix.artifact_name }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8a3b689..a0606e2 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -93,7 +93,7 @@ jobs:
         shell: bash
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: dist-${{ matrix.os }}
           path: |
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index eb6e3f8..66beb46 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -136,7 +136,7 @@ jobs:
           license-checker --failOn "GPL;AGPL;LGPL"
 
       - name: Upload license report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: license-report
           path: licenses.json
@@ -183,7 +183,7 @@ jobs:
           npx @cyclonedx/cyclonedx-npm --output-file sbom.json
 
       - name: Upload SBOM
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: sbom
           path: sbom.json