diff --git a/lerobot/configs/policy/act_koch_real_bigger.yaml b/lerobot/configs/policy/act_koch_real_bigger.yaml
index 1a924ec53..2070867e2 100644
--- a/lerobot/configs/policy/act_koch_real_bigger.yaml
+++ b/lerobot/configs/policy/act_koch_real_bigger.yaml
@@ -34,7 +34,7 @@ training:
   log_freq: 100
   save_checkpoint: true
 
-  batch_size: 64
+  batch_size: 16
   lr: 1e-4
   lr_backbone: 1e-4
   weight_decay: 1e-4