diff --git a/.github/workflows/release-toot.yml b/.github/workflows/release-toot.yml
index 2af0f17..6a1c815 100644
--- a/.github/workflows/release-toot.yml
+++ b/.github/workflows/release-toot.yml
@@ -17,5 +17,5 @@ jobs:
           # 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_URL: https://phpc.social
           MASTODON_ACCESS_TOKEN: ${{ secrets.MASTODON_ACCESS_TOKEN }}