diff --git a/.github/workflows/cypress-workflow.yml b/.github/workflows/cypress-workflow.yml
index b5c4f0ee0..7ed996824 100644
--- a/.github/workflows/cypress-workflow.yml
+++ b/.github/workflows/cypress-workflow.yml
@@ -84,13 +84,13 @@ jobs:
           wait-on: 'http://localhost:5601'
           browser: chrome
       # Screenshots are only captured on failure, will change this once we do visual regression tests
-      - uses: actions/upload-artifact@v1
+      - uses: actions/upload-artifact@v4
         if: failure()
         with:
           name: cypress-screenshots
           path: OpenSearch-Dashboards/plugins/index-management-dashboards-plugin/cypress/screenshots
       # Test run video was always captured, so this action uses "always()" condition
-      - uses: actions/upload-artifact@v1
+      - uses: actions/upload-artifact@v4
         if: always()
         with:
           name: cypress-videos
diff --git a/.github/workflows/dco.yml b/.github/workflows/dco.yml
deleted file mode 100644
index cf30ea89d..000000000
--- a/.github/workflows/dco.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-name: Developer Certificate of Origin Check
-
-on: [pull_request]
-
-jobs:
-  check:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Get PR Commits
-        id: 'get-pr-commits'
-        uses: tim-actions/get-pr-commits@v1.1.0
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-      - name: DCO Check
-        uses: tim-actions/dco@v1.1.0
-        with:
-          commits: ${{ steps.get-pr-commits.outputs.commits }}