diff --git a/.github/workflows/sync-branches.yml b/.github/workflows/sync-branches.yml
new file mode 100644
index 0000000..84853c1
--- /dev/null
+++ b/.github/workflows/sync-branches.yml
@@ -0,0 +1,23 @@
+name: Update staging and production environments
+
+on:
+  push:
+    branches:
+      - stage-live
+
+jobs:
+  sync-stage-live-to-stage-fork:
+    if: github.ref == 'refs/heads/stage-live'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Sync `stage-fork` with `stage-live`
+        env:
+          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
+        run: |
+          git checkout stage-live
+          git pull --all
+          git checkout stage-fork
+          git merge origin/stage-live
+          git push
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