diff --git a/notifications/notifications.yaml b/notifications/notifications.yaml
index 4440281..86b289f 100644
--- a/notifications/notifications.yaml
+++ b/notifications/notifications.yaml
@@ -316,12 +316,21 @@ components:
         - $ref: '#/components/schemas/ConnectionData'
         - type: object
           properties:
-            error:
+            errors:
               type: array
               items:
                 type: string
               description: Array of error messages describing the connection error.
               example: ["Authentication failed", "Token refresh error"]
+            error:
+              type: array
+              items:
+                type: string
+              description: >-
+                Deprecated. Use `errors` instead. Array of error messages describing
+                the connection error. Kept for backward compatibility.
+              deprecated: true
+              example: ["Authentication failed", "Token refresh error"]
 
     # Destination webhook disabled event data
     DestinationWebhookDisabledData: