diff --git a/examples/hi_xiaowen/s0/conf/ds_tcn.yaml b/examples/hi_xiaowen/s0/conf/ds_tcn.yaml
index e511502..6ef4407 100644
--- a/examples/hi_xiaowen/s0/conf/ds_tcn.yaml
+++ b/examples/hi_xiaowen/s0/conf/ds_tcn.yaml
@@ -37,6 +37,7 @@ model:
 optim: adam
 optim_conf:
     lr: 0.001
+    weight_decay: 0.0001
 
 training_config:
     grad_clip: 5
diff --git a/examples/hi_xiaowen/s0/conf/tcn.yaml b/examples/hi_xiaowen/s0/conf/tcn.yaml
index 517b94e..35ff1c0 100644
--- a/examples/hi_xiaowen/s0/conf/tcn.yaml
+++ b/examples/hi_xiaowen/s0/conf/tcn.yaml
@@ -37,6 +37,7 @@ model:
 optim: adam
 optim_conf:
     lr: 0.001
+    weight_decay: 0.0001
 
 training_config:
     grad_clip: 5