diff --git a/python/examples/pipeline/imdb_model_ensemble/config.yml b/python/examples/pipeline/imdb_model_ensemble/config.yml
index 5ad37f846524922c2e262691b18eff953b19a105..c9a00f2700cf0003824fa08867687695acec548d 100644
--- a/python/examples/pipeline/imdb_model_ensemble/config.yml
+++ b/python/examples/pipeline/imdb_model_ensemble/config.yml
@@ -1,6 +1,8 @@
-use_multithread: true
-client_type: brpc
-retry: 1
-profile: false
-prot: 8080
-worker_num: 2
+port: 18080
+worker_num: 1
+build_dag_each_request: true
+dag:
+    is_thread_op: false
+    client_type: brpc
+    retry: 1
+    use_profile: false