diff --git a/config.yaml b/config.yaml
index 9645b4e..cfbbf44 100644
--- a/config.yaml
+++ b/config.yaml
@@ -22,7 +22,7 @@ debug:
     env_batch_size: 4
     env_pool: True
     zero_copy: False
-    batch_size: 4
+    batch_size: 128
     minibatch_size: 4
     batch_rows: 4
     bptt_horizon: 2