diff --git a/demo/demo1/config.yaml b/demo/demo1/config.yaml
index 0cca90ff519fc9606214dd3aad4c5763092e9bcc..75b685fc933939f1787c9171ceda3f2ca3cec37b 100644
--- a/demo/demo1/config.yaml
+++ b/demo/demo1/config.yaml
@@ -2,7 +2,7 @@ task_instance: "mrqa"
 
 save_path: "output_model/firstrun"
 
-backbone: "bert-en-uncased-large"
+backbone: "bert"
 backbone_config_path: "../../pretrain/bert-en-uncased-large/bert_config.json"
 
 batch_size: 4
diff --git a/demo/demo2/config.yaml b/demo/demo2/config.yaml
index f62c257f21a1dd55fe0de85546b8518702eac9de..1cc55777a39c747f98dd4e89fcaae4af587592d5 100644
--- a/demo/demo2/config.yaml
+++ b/demo/demo2/config.yaml
@@ -4,7 +4,7 @@ mix_ratio: 1.0, 0.5, 0.5
 
 save_path: "output_model/secondrun"
 
-backbone: "ernie-en-uncased-large"
+backbone: "ernie"
 backbone_config_path: "../../pretrain/ernie-en-uncased-large/ernie_config.json"
 
 vocab_path: "../../pretrain/ernie-en-uncased-large/vocab.txt"
diff --git a/demo/demo3/config.yaml b/demo/demo3/config.yaml
index 0595e58eb2c099807f1a9f790428406f134efe89..23beac1f80203a0a16edf0106ca26b66562f8ef1 100644
--- a/demo/demo3/config.yaml
+++ b/demo/demo3/config.yaml
@@ -4,7 +4,7 @@ task_reuse_tag: 0,0,1,1,0,2
 
 save_path: "output_model/thirdrun"
 
-backbone: "ernie-en-uncased-large"
+backbone: "ernie"
 backbone_config_path: "../../pretrain/ernie-en-uncased-large/ernie_config.json"
 
 vocab_path: "../../pretrain/ernie-en-uncased-large/vocab.txt"