diff --git a/.github/workflows/contracts.yml b/.github/workflows/contracts.yml
index 1586493..d95b166 100644
--- a/.github/workflows/contracts.yml
+++ b/.github/workflows/contracts.yml
@@ -99,7 +99,7 @@ jobs:
 
       - name: Create Slither report artifact
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: slither-report
           path: |
@@ -129,7 +129,7 @@ jobs:
         run: REPORT_GAS=true npm test || true
 
       - name: Upload gas report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: gas-report
           path: packages/contracts/gas-report.txt
diff --git a/.github/workflows/deploy-production.yml b/.github/workflows/deploy-production.yml
index e81e229..9abe8f0 100644
--- a/.github/workflows/deploy-production.yml
+++ b/.github/workflows/deploy-production.yml
@@ -86,7 +86,7 @@ jobs:
           BASESCAN_API_KEY: ${{ secrets.BASESCAN_API_KEY }}
 
       - name: Save deployment artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: production-deployment
           path: |
diff --git a/.github/workflows/deploy-staging.yml b/.github/workflows/deploy-staging.yml
index 09610a5..92c4aff 100644
--- a/.github/workflows/deploy-staging.yml
+++ b/.github/workflows/deploy-staging.yml
@@ -83,7 +83,7 @@ jobs:
         continue-on-error: true
 
       - name: Save deployment artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: staging-deployment
           path: |
diff --git a/.github/workflows/e2e-tests.yml b/.github/workflows/e2e-tests.yml
index 424587f..2aa82dd 100644
--- a/.github/workflows/e2e-tests.yml
+++ b/.github/workflows/e2e-tests.yml
@@ -59,7 +59,7 @@ jobs:
     
     - name: Upload test results
       if: always()
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v7
       with:
         name: playwright-report
         path: apps/web/playwright-report/
diff --git a/.github/workflows/pr-checks.yml b/.github/workflows/pr-checks.yml
index 6c27188..d60951b 100644
--- a/.github/workflows/pr-checks.yml
+++ b/.github/workflows/pr-checks.yml
@@ -102,7 +102,7 @@ jobs:
           NODE_ENV: production
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: build-output
           path: |
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index b19e793..5036f46 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -40,7 +40,7 @@ jobs:
         continue-on-error: true
 
       - name: Upload audit report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: npm-audit-report
           path: audit-report.txt
@@ -163,7 +163,7 @@ jobs:
             --rule 'security/detect-unsafe-regex: error' || true
 
       - name: Upload ESLint report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: eslint-security-report
           path: eslint-report.json
@@ -207,7 +207,7 @@ jobs:
             > license-report.txt || true
 
       - name: Upload license report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: license-report
           path: license-report.txt
@@ -239,7 +239,7 @@ jobs:
           echo "- SAST Scan: ${{ needs.sast-scan.result }}" >> security-summary.md
 
       - name: Upload security summary
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: security-summary
           path: security-summary.md