diff --git a/README.md b/README.md
index 5e54f9b..45e3ed4 100644
--- a/README.md
+++ b/README.md
@@ -33,5 +33,5 @@ mkdir log
 
 开跑
 ```python
-python run.py --root_path datasets --data_path PEMS-BAY --device cuda:0 --seq_len 12 --pred_len 12
+python run.py --root_path datasets --data_path PEMS-BAY --device cuda:0 --seq_len 24 --pred_len 24
 ```
\ No newline at end of file
diff --git a/prepare_pems_bay.py b/prepare_pems_bay.py
index 0cd1758..bd6a58d 100644
--- a/prepare_pems_bay.py
+++ b/prepare_pems_bay.py
@@ -46,8 +46,8 @@ def split_by_ratio(x: np.ndarray, y: np.ndarray, ratios):
 def main():
     parser = argparse.ArgumentParser(description="Prepare PEMS-BAY to train/val/test .npz")
     parser.add_argument("--dataset_dir", type=str, default='./datasets/PEMS-BAY', help="Path to datasets/PEMS-BAY directory")
-    parser.add_argument("--seq_len", type=int, default=12)
-    parser.add_argument("--pred_len", type=int, default=12)
+    parser.add_argument("--seq_len", type=int, default=24)
+    parser.add_argument("--pred_len", type=int, default=24)
     parser.add_argument("--speed_channel_only", action="store_true", help="Use only the first channel (speed)")
     args = parser.parse_args()