diff --git a/.github/workflows/slack.yml b/.github/workflows/slack.yml
index a0ec888..499d465 100644
--- a/.github/workflows/slack.yml
+++ b/.github/workflows/slack.yml
@@ -9,6 +9,18 @@ jobs:
       uses: slackapi/slack-github-action@v1.24.0
       with:
         channel-id: 'testing-github-actions-slack-bot'
-        slack-message: "GitHub build result: ${{ job.status }}\n${{ github.event.pull_request.html_url || github.event.head_commit.url }}"
+        payload: |
+          {
+            "text": "GitHub Action build result: ${{ job.status }}\n${{ github.event.pull_request.html_url || github.event.head_commit.url }}",
+            "blocks": [
+              {
+                "type": "section",
+                "text": {
+                  "type": "mrkdwn",
+                  "text": "GitHub Action build result: ${{ job.status }}\n${{ github.event.pull_request.html_url || github.event.head_commit.url }}"
+                }
+              }
+            ]
+          }
       env:
         SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}