diff --git a/library/train_util.py b/library/train_util.py
index 83efa03..b92057e 100644
--- a/library/train_util.py
+++ b/library/train_util.py
@@ -4740,7 +4740,6 @@ def prepare_accelerator(args: argparse.Namespace):
         kwargs_handlers=kwargs_handlers,
         dynamo_backend=dynamo_backend,
         deepspeed_plugin=deepspeed_plugin,
-        mixed_precision='bf16',
     )
     print("accelerator device:", accelerator.device)
     return accelerator