diff --git a/1991.yml b/1991.yml
index 41f046397..fb8705af2 100644
--- a/1991.yml
+++ b/1991.yml
@@ -16,7 +16,7 @@ dataset_prepared_path:
 val_set_size: 0
 output_dir: ./outputs/out
 
-sequence_len: 8192
+sequence_len: 2048
 sample_packing: true
 eval_sample_packing: true
 pad_to_sequence_len: true