diff --git a/.github/workflows/ci-cd.yml b/.github/workflows/ci-cd.yml
index 3212ed267..772b2e4ff 100644
--- a/.github/workflows/ci-cd.yml
+++ b/.github/workflows/ci-cd.yml
@@ -94,7 +94,7 @@ jobs:
 
       - name: Upload coverage
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: coverage-report
           path: coverage/
@@ -149,7 +149,7 @@ jobs:
           NODE_ENV: production
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: build-dist
           path: dist/
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 788d68003..6071cd4ce 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -125,7 +125,7 @@ jobs:
 
       - name: Upload coverage
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: coverage
           path: coverage/
@@ -177,7 +177,7 @@ jobs:
 
       - name: Upload Snyk JSON report as artifact
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: snyk-vulnerability-report
           path: snyk-report.json
@@ -222,7 +222,7 @@ jobs:
         run: pnpm build
 
       - name: Upload build artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: dist
           path: dist/
@@ -342,7 +342,7 @@ jobs:
 
       - name: Upload k6 smoke summary
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: k6-smoke-summary
           path: k6-smoke-summary.json
@@ -436,7 +436,7 @@ jobs:
 
       - name: Upload Playwright report (shard ${{ matrix.shardIndex }})
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: playwright-report-shard-${{ matrix.shardIndex }}
           path: playwright-report/
@@ -444,7 +444,7 @@ jobs:
 
       - name: Upload Playwright test results (shard ${{ matrix.shardIndex }})
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: playwright-results-shard-${{ matrix.shardIndex }}
           path: test-results/
@@ -488,7 +488,7 @@ jobs:
             ./all-playwright-reports
 
       - name: Upload merged Playwright report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: playwright-report-merged
           path: playwright-report/
@@ -545,7 +545,7 @@ jobs:
 
       - name: Upload Go test logs
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: go-test-logs
           path: /tmp/go-*-test.log
@@ -608,7 +608,7 @@ jobs:
 
       - name: Upload Python test logs
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: python-test-logs
           path: /tmp/py-*-test.log
@@ -744,7 +744,7 @@ jobs:
 
       - name: Upload k6 OTA load test results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: k6-ota-results
           path: k6/results/
@@ -857,7 +857,7 @@ jobs:
 
       - name: Upload ZAP reports
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: zap-security-reports
           path: |
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 5e76c765a..19dd5e97f 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -77,7 +77,7 @@ jobs:
 
       - name: Upload CodeQL results as artifact
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: codeql-javascript-results
           path: codeql-results-js/
@@ -134,7 +134,7 @@ jobs:
 
       - name: Upload CodeQL results as artifact
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: codeql-go-results
           path: codeql-results-go/
@@ -187,7 +187,7 @@ jobs:
 
       - name: Upload CodeQL results as artifact
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: codeql-python-results
           path: codeql-results-python/
diff --git a/.github/workflows/e2e-playwright.yml b/.github/workflows/e2e-playwright.yml
index 890d420cb..8a509848b 100644
--- a/.github/workflows/e2e-playwright.yml
+++ b/.github/workflows/e2e-playwright.yml
@@ -119,7 +119,7 @@ jobs:
           BASE_URL: http://localhost:3000
 
       - name: Upload Playwright report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: playwright-report-${{ github.sha }}
@@ -127,7 +127,7 @@ jobs:
           retention-days: 14
 
       - name: Upload test results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: test-results-${{ github.sha }}
diff --git a/.github/workflows/infrastructure.yml b/.github/workflows/infrastructure.yml
index 6c1f6f439..3b2b86e89 100644
--- a/.github/workflows/infrastructure.yml
+++ b/.github/workflows/infrastructure.yml
@@ -61,7 +61,7 @@ jobs:
         continue-on-error: true
 
       - name: Upload plan
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: tfplan-${{ matrix.environment }}
           path: infra/terraform/tfplan-${{ matrix.environment }}