diff --git a/.github/workflows/build-raspi-image.yml b/.github/workflows/build-raspi-image.yml
index e874626..2c6ce2a 100644
--- a/.github/workflows/build-raspi-image.yml
+++ b/.github/workflows/build-raspi-image.yml
@@ -257,7 +257,7 @@ jobs:
           ls -lh .
 
       - name: Upload image artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: raspi-image-${{ matrix.arch }}
           path: |
diff --git a/.github/workflows/ci-cd.yml b/.github/workflows/ci-cd.yml
index 7f2547f..f9e6ace 100644
--- a/.github/workflows/ci-cd.yml
+++ b/.github/workflows/ci-cd.yml
@@ -194,7 +194,7 @@ jobs:
           token: ${{ secrets.CODECOV_TOKEN }}
 
       - name: Upload coverage JSON (for summary)
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: backend-coverage
@@ -243,7 +243,7 @@ jobs:
           token: ${{ secrets.CODECOV_TOKEN }}
 
       - name: Upload coverage JSON (for summary)
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: frontend-coverage
@@ -317,7 +317,7 @@ jobs:
           CYPRESS_API_URL: http://localhost:7778/api
 
       - name: Upload Cypress screenshots on failure
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: failure()
         with:
           name: cypress-screenshots
@@ -325,7 +325,7 @@ jobs:
           retention-days: 7
 
       - name: Upload Cypress videos on failure
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: failure()
         with:
           name: cypress-videos
@@ -379,7 +379,7 @@ jobs:
           severity: 'HIGH,CRITICAL,MEDIUM,LOW'
 
       - name: Upload Trivy scan results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: trivy-scan-results
@@ -453,7 +453,7 @@ jobs:
           touch "/tmp/digests/${digest#sha256:}"
 
       - name: Upload digest
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: digests-${{ strategy.job-index }}
           path: /tmp/digests/*