diff --git a/.github/workflows/production-deployment.yml b/.github/workflows/production-deployment.yml
index af84eca..10fabb1 100644
--- a/.github/workflows/production-deployment.yml
+++ b/.github/workflows/production-deployment.yml
@@ -189,7 +189,7 @@ jobs:
           cp _headers dist/_headers 2>/dev/null || echo "No _headers file found"
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: frontend-build
           path: nexus-reader/dist/
@@ -202,7 +202,7 @@ jobs:
           echo "Publish skipped (using Bun; add bun publish if needed)"
 
       - name: Upload source maps
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: source-maps
           path: nexus-reader/dist/**/*.map
@@ -216,7 +216,7 @@ jobs:
 
     steps:
       - name: Download frontend build
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: frontend-build
           path: frontend-dist
diff --git a/.github/workflows/security-scan.yml b/.github/workflows/security-scan.yml
index 8c1e837..2c4c93b 100644
--- a/.github/workflows/security-scan.yml
+++ b/.github/workflows/security-scan.yml
@@ -93,7 +93,7 @@ jobs:
           exit 0
 
       - name: Upload audit results
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: security-audit-results
           path: |
@@ -201,7 +201,7 @@ jobs:
 
       - name: Upload security check results
         if: always()
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: custom-security-checks
           path: |