diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f71cccf2c..b9ccd0900 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,5 +18,5 @@ jobs:
           CHANGELOG: '<!channel> ${{ steps.markdown.outputs.text }}'
           SLACK_WEBHOOK_URL: ${{ secrets.SLACK_RELEASE_BOT_WEBHOOK }}
         with:
-          payload: '{"type": "mrkdwn", "text": ${{ toJSON(env.CHANGELOG) }}'
+          payload: '{"type": "mrkdwn", "text": ${{ toJSON(env.CHANGELOG) }} }'