diff --git a/.github/workflows/clean-merged-branch.yml b/.github/workflows/clean-merged-branch.yml
new file mode 100644
index 0000000..f276abd
--- /dev/null
+++ b/.github/workflows/clean-merged-branch.yml
@@ -0,0 +1,17 @@
+name: Delete merged branches in fork
+
+on:
+  pull_request:
+    types:
+      - closed
+
+jobs:
+  delete_branch:
+    runs-on: ubuntu-latest
+    if: github.event.pull_request.merged == true
+    steps:
+      - name: Delete merged branch from fork
+        run: |
+          git config --global user.name "github-actions[bot]"
+          git config --global user.email "github-actions[bot]@users.noreply.github.com"
+          git push origin --delete ${{ github.event.pull_request.head.ref }}