diff --git a/.github/workflows/clean-build-ci.yml b/.github/workflows/clean-build-ci.yml
index e4b3a6146..8e90c0a75 100644
--- a/.github/workflows/clean-build-ci.yml
+++ b/.github/workflows/clean-build-ci.yml
@@ -203,7 +203,7 @@ jobs:
           exit 1
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: core-build
           path: |
@@ -263,7 +263,7 @@ jobs:
           npm run build
 
       - name: Upload frontend artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: frontend-build
           path: frontend/dist/
@@ -386,7 +386,7 @@ jobs:
           exit 1
 
       - name: Upload test results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: test-results-${{ matrix.test-type }}
@@ -538,7 +538,7 @@ jobs:
           tar -czf heady-deploy-${{ github.run_id }}.tar.gz deploy-bundle/
 
       - name: Upload deployment bundle
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: deployment-bundle
           path: heady-deploy-*.tar.gz
diff --git a/.github/workflows/clean-build.yml b/.github/workflows/clean-build.yml
index 58b437fbf..836a476c4 100644
--- a/.github/workflows/clean-build.yml
+++ b/.github/workflows/clean-build.yml
@@ -171,7 +171,7 @@ jobs:
           echo "✅ Build artifacts verified"
           
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: manager-build
           path: dist/
@@ -291,7 +291,7 @@ jobs:
         run: npm run build
         
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: frontend-build
           path: frontend/dist/
@@ -350,7 +350,7 @@ jobs:
           docker save heady-worker:${{ github.sha }} > worker-image.tar
           
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: worker-image
           path: backend/python_worker/worker-image.tar
diff --git a/.github/workflows/electron-build.yml b/.github/workflows/electron-build.yml
index 6d8630792..27e2b1ee2 100644
--- a/.github/workflows/electron-build.yml
+++ b/.github/workflows/electron-build.yml
@@ -35,7 +35,7 @@ jobs:
         working-directory: desktop-overlay
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: headyide-${{ runner.os }}
           path: desktop-overlay/dist/**
@@ -199,7 +199,7 @@ jobs:
 
       - name: Upload test results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: test-results
           path: |
diff --git a/.github/workflows/env-validator.yml b/.github/workflows/env-validator.yml
index 8685b2904..80357146b 100644
--- a/.github/workflows/env-validator.yml
+++ b/.github/workflows/env-validator.yml
@@ -142,7 +142,7 @@ jobs:
       # ── Upload validator report as artifact ──────────────────────────────
       - name: "Upload validator report"
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: env-validator-report-${{ github.sha }}
           path: /tmp/env-validator-report.json
diff --git a/.github/workflows/file_maintenance.yml b/.github/workflows/file_maintenance.yml
index 254121e40..d2e6e71c2 100644
--- a/.github/workflows/file_maintenance.yml
+++ b/.github/workflows/file_maintenance.yml
@@ -189,7 +189,7 @@ jobs:
           fi
 
       - name: Upload scan artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: scan-results-${{ github.run_number }}
diff --git a/.github/workflows/hcfp-clean-build.yml b/.github/workflows/hcfp-clean-build.yml
index ec3499730..cc7776e9f 100644
--- a/.github/workflows/hcfp-clean-build.yml
+++ b/.github/workflows/hcfp-clean-build.yml
@@ -191,7 +191,7 @@ jobs:
       
       - name: 📤 Upload Build Artifacts
         if: steps.build.outcome == 'success'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: build-${{ matrix.component }}
           path: |
@@ -244,7 +244,7 @@ jobs:
         continue-on-error: ${{ matrix.test_type == 'e2e' }}
       
       - name: 📊 Upload Test Results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: test-results-${{ matrix.test_type }}
           path: |
@@ -337,7 +337,7 @@ jobs:
           echo "📌 Release version: $VERSION"
       
       - name: 📤 Upload Deploy Package
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: deploy-package-${{ env.VERSION }}
           path: deploy-artifacts/
diff --git a/.github/workflows/hcfp-production-clean-build.yml b/.github/workflows/hcfp-production-clean-build.yml
index 2a9b7968b..c465f8a19 100644
--- a/.github/workflows/hcfp-production-clean-build.yml
+++ b/.github/workflows/hcfp-production-clean-build.yml
@@ -106,7 +106,7 @@ jobs:
           npm run build --if-present
       
       - name: Archive build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: node-build
           path: |
@@ -487,7 +487,7 @@ jobs:
           echo "✅ Manifest JSON syntax valid"
           
       - name: Upload deployment manifest
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: deployment-manifest
           path: deploy/deployment-manifest.json