diff --git a/.github/workflows/release-toot.yml b/.github/workflows/release-toot.yml
new file mode 100644
index 0000000..2af0f17
--- /dev/null
+++ b/.github/workflows/release-toot.yml
@@ -0,0 +1,21 @@
+name: Toot release
+
+# More triggers
+# https://docs.github.com/en/actions/learn-github-actions/events-that-trigger-workflows#release
+on:
+  release:
+    types: [published]
+
+jobs:
+  toot:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: cbrgm/mastodon-github-action@v1
+        if: ${{ !github.event.repository.private }}
+        with:
+          # GitHub event payload
+          # https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads#release
+          message: "New release: ${{ github.event.repository.name }} ${{ github.event.release.tag_name }} ${{ github.event.release.html_url }} #phpstan"
+        env:
+          MASTODON_URL: phpc.social
+          MASTODON_ACCESS_TOKEN: ${{ secrets.MASTODON_ACCESS_TOKEN }}