diff --git a/pyproject.toml b/pyproject.toml
index 0f22984d..b8bdfd62 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ build-backend = "poetry.masonry.api"
 
 [tool.poetry]
 name = "together"
-version = "1.5.14"
+version = "1.5.15"
 authors = ["Together AI <support@together.ai>"]
 description = "Python client for Together's Cloud Platform!"
 readme = "README.md"
diff --git a/src/together/cli/api/finetune.py b/src/together/cli/api/finetune.py
index f95235cf..b77df655 100644
--- a/src/together/cli/api/finetune.py
+++ b/src/together/cli/api/finetune.py
@@ -163,7 +163,7 @@ def fine_tuning(ctx: click.Context) -> None:
 @click.option(
     "--simpo-gamma",
     type=float,
-    default=0.1,
+    default=0.0,
     help="SimPO gamma parameter (only used when '--training-method' is 'dpo')",
 )
 @click.option(