diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index ea391f018..259cef640 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -118,7 +118,7 @@ jobs:
           echo "✅ All critical assets verified successfully"
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: site-build
           path: _site/
diff --git a/.github/workflows/manual-deploy.yml b/.github/workflows/manual-deploy.yml
index ee47d7a4b..be4669346 100644
--- a/.github/workflows/manual-deploy.yml
+++ b/.github/workflows/manual-deploy.yml
@@ -58,7 +58,7 @@ jobs:
           JEKYLL_ENV: production
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: site-${{ inputs.environment }}-${{ github.sha }}
           path: _site/
diff --git a/.github/workflows/test-multilingual.yml b/.github/workflows/test-multilingual.yml
index 9a02c1739..502b2cf80 100644
--- a/.github/workflows/test-multilingual.yml
+++ b/.github/workflows/test-multilingual.yml
@@ -51,7 +51,7 @@ jobs:
         ./test-multilingual.sh
     
     - name: Upload build artifacts on failure
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       if: failure()
       with:
         name: build-artifacts