diff --git a/services/service-workflow/main/default/routes/api_workflow_amis_chart.router.js b/services/service-workflow/main/default/routes/api_workflow_amis_chart.router.js
index 234ffdc2ef..dd3566430b 100644
--- a/services/service-workflow/main/default/routes/api_workflow_amis_chart.router.js
+++ b/services/service-workflow/main/default/routes/api_workflow_amis_chart.router.js
@@ -186,9 +186,7 @@ router.get('/api/workflow/amis_chart', core.requireAuthentication, async functio
                 '$project': {
                     'flow_version': 1,
                     'flow': 1,
-                    'lastTrace': {
-                        '$last': '$traces'
-                    }
+                    'lastTrace': { $arrayElemAt: ["$traces", -1] }
                 }
             }
         ])