diff --git a/engine/apps/slack/models/slack_message.py b/engine/apps/slack/models/slack_message.py
index 1e1c8f7f..50a4c821 100644
--- a/engine/apps/slack/models/slack_message.py
+++ b/engine/apps/slack/models/slack_message.py
@@ -6,6 +6,7 @@ import uuid
 from django.db import models
 
 from apps.slack.client import SlackClient
+from apps.slack.constants import BLOCK_SECTION_TEXT_MAX_SIZE
 from apps.slack.errors import (
     SlackAPIChannelArchivedError,
     SlackAPIError,
@@ -127,6 +128,8 @@ class SlackMessage(models.Model):
         else:
             text = "{}\nInviting {} to look at the alert group.".format(alert_group.long_verbose_name, user_verbal)
 
+        text = text[:BLOCK_SECTION_TEXT_MAX_SIZE]
+
         blocks = [
             {
                 "type": "section",