diff --git a/.github/workflows/branch-builder.yml b/.github/workflows/branch-builder.yml
index f2f23cf..b7908c6 100644
--- a/.github/workflows/branch-builder.yml
+++ b/.github/workflows/branch-builder.yml
@@ -17,7 +17,14 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Test Slack message with default settings
+        id: basic-message
         uses: ./
         with:
           channel: ${{ env.SLACK_CHANNEL_ID }}
           text: "Test message from <https://github.com/${{ github.repository }}|`${{ github.repository }}`>:\n\nMessage sent from: <https://github.com/${{ github.repository }}/compare/main...${{ env.BRANCH_NAME }}|`${{ env.BRANCH_NAME }}`>\nWorkflow Log: <https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}|Run ${{ github.run_id }}>"
+      - name: Test Slack reply
+        uses: ./
+        with:
+          thread_ts: ${{ steps.basic-message.outputs.ts }}
+          channel: ${{ env.SLACK_CHANNEL_ID }}
+          test: "Test reply with a link to unfurl: https://www.ynab.com"