diff --git a/egs/librispeech/ASR/pruned_transducer_stateless7/train.py b/egs/librispeech/ASR/pruned_transducer_stateless7/train.py
index 8eade61a8..3b668b229 100755
--- a/egs/librispeech/ASR/pruned_transducer_stateless7/train.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless7/train.py
@@ -160,7 +160,7 @@ def add_model_arguments(parser: argparse.ArgumentParser):
     parser.add_argument(
         "--encoder-dim",
         type=str,
-        default="192,192,256,384,256,192",
+        default="192,256,384,512,384,256",
         help="Embedding dimension in encoder stacks: a single int or comma-separated list."
     )