diff --git a/examples/benchmarks/SFM/workflow_config_sfm.yaml b/examples/benchmarks/SFM/workflow_config_sfm.yaml
index 9086bab4a..743c6220f 100644
--- a/examples/benchmarks/SFM/workflow_config_sfm.yaml
+++ b/examples/benchmarks/SFM/workflow_config_sfm.yaml
@@ -32,7 +32,7 @@ task:
             d_feat: 6
             hidden_size: 64
             output_dim: 1
-            freq_dim: 15
+            freq_dim: 20
             dropout_W: 0.5
             dropout_U: 0.5
             n_epochs: 10
@@ -70,4 +70,4 @@ task:
         - class: PortAnaRecord
           module_path: qlib.workflow.record_temp
           kwargs: 
-            config: *port_analysis_config
\ No newline at end of file
+            config: *port_analysis_config