diff --git a/notifications/notifications/src/test/kotlin/org/opensearch/integtest/bwc/NotificationsBackwardsCompatibilityIT.kt b/notifications/notifications/src/test/kotlin/org/opensearch/integtest/bwc/NotificationsBackwardsCompatibilityIT.kt
index 6e7eee5f..3ba6b86f 100644
--- a/notifications/notifications/src/test/kotlin/org/opensearch/integtest/bwc/NotificationsBackwardsCompatibilityIT.kt
+++ b/notifications/notifications/src/test/kotlin/org/opensearch/integtest/bwc/NotificationsBackwardsCompatibilityIT.kt
@@ -103,7 +103,7 @@ class NotificationsBackwardsCompatibilityIT : PluginRestTestCase() {
                 "description": "This is a sample config description $configId",
                 "config_type": "slack",
                 "is_enabled": true,
-                "slack": { "url": "https://slack.domain.com/sample_slack_url#$configId" }
+                "slack": { "url": "https://hooks.slack.com/services/A123456/B1234567/A1B2C3D4E5F6G7H8I9J0K1L2#$configId" }
             }
         }
         """.trimIndent()
diff --git a/notifications/notifications/src/test/kotlin/org/opensearch/notifications/model/NotificationConfigDocTests.kt b/notifications/notifications/src/test/kotlin/org/opensearch/notifications/model/NotificationConfigDocTests.kt
index 553499b0..f36eebef 100644
--- a/notifications/notifications/src/test/kotlin/org/opensearch/notifications/model/NotificationConfigDocTests.kt
+++ b/notifications/notifications/src/test/kotlin/org/opensearch/notifications/model/NotificationConfigDocTests.kt
@@ -47,7 +47,7 @@ internal class NotificationConfigDocTests {
             createdTimeMs,
             listOf("br1", "br2", "br3")
         )
-        val sampleSlack = Slack("https://domain.com/sample_url#1234567890")
+        val sampleSlack = Slack("https://hooks.slack.com/services/A123456/B1234567/A1B2C3D4E5F6G7H8I9J0K1L2")
         val config = NotificationConfig(
             "name",
             "description",