diff --git a/services/tickets/rocketchat/web.go b/services/tickets/rocketchat/web.go
index 286de0cf2..68a99247d 100644
--- a/services/tickets/rocketchat/web.go
+++ b/services/tickets/rocketchat/web.go
@@ -53,7 +53,7 @@ func handleEventCallback(ctx context.Context, rt *runtime.Runtime, r *http.Reque
 	}
 
 	request := &eventCallbackRequest{}
-	if err := utils.UnmarshalAndValidateWithLimit(r.Body, request, web.MaxRequestBytes); err != nil {
+	if err := web.ReadAndValidateJSON(r, request); err != nil {
 		return err, http.StatusBadRequest, nil
 	}
 
@@ -90,11 +90,6 @@ func handleEventCallback(ctx context.Context, rt *runtime.Runtime, r *http.Reque
 			}
 		}
 
-		var attachments []string
-		for _, attachment := range data.Attachments {
-			attachments = append(attachments, attachment.URL)
-		}
-
 		_, err = tickets.SendReply(ctx, rt, ticket, data.Text, files)
 
 	case "close-room":