diff --git a/engineapi/alembic/versions/71e888082a6d_leaderboard_metadata.py b/engineapi/alembic/versions/71e888082a6d_leaderboard_metadata.py
index 37ad0604..27b96f56 100644
--- a/engineapi/alembic/versions/71e888082a6d_leaderboard_metadata.py
+++ b/engineapi/alembic/versions/71e888082a6d_leaderboard_metadata.py
@@ -1,7 +1,7 @@
 """leaderboard metadata
 
 Revision ID: 71e888082a6d
-Revises: 040f2dfde5a5
+Revises: cc80e886e153
 Create Date: 2023-11-15 13:21:16.108399
 
 """
@@ -11,7 +11,7 @@ from sqlalchemy.dialects import postgresql
 
 # revision identifiers, used by Alembic.
 revision = "71e888082a6d"
-down_revision = "040f2dfde5a5"
+down_revision = "cc80e886e153"
 branch_labels = None
 depends_on = None
 
@@ -36,10 +36,7 @@ def upgrade():
     op.add_column(
         "leaderboards",
         sa.Column(
-            "columns_names",
-            postgresql.JSONB(astext_type=sa.Text()),
-            nullable=True,
-            server_default="{}",
+            "columns_names", postgresql.JSONB(astext_type=sa.Text()), nullable=True
         ),
     )
     # ### end Alembic commands ###
diff --git a/engineapi/engineapi/actions.py b/engineapi/engineapi/actions.py
index bc597fbc..8df73261 100644
--- a/engineapi/engineapi/actions.py
+++ b/engineapi/engineapi/actions.py
@@ -1573,7 +1573,6 @@ def update_leaderboard(
     wallet_connect: Optional[bool],
     blockchain_ids: Optional[List[int]],
     columns_names: Optional[ColumnsNames],
-    delete_names,
 ) -> Leaderboard:
     """
     Update a leaderboard
diff --git a/engineapi/engineapi/data.py b/engineapi/engineapi/data.py
index 99fadbec..9830427e 100644
--- a/engineapi/engineapi/data.py
+++ b/engineapi/engineapi/data.py
@@ -370,7 +370,7 @@ class ColumnsNames(BaseModel):
     address: Optional[str] = None
     score: Optional[str] = None
     points_data: Optional[str] = None
-    points_data_fields: Dict[str, str] = Field(default_factory=dict)
+    points_data_fields: Optional[Dict[str, str]] = None
 
 
 class Leaderboard(BaseModel):
@@ -380,7 +380,7 @@ class Leaderboard(BaseModel):
     resource_id: Optional[UUID] = None
     wallet_connect: bool = False
     blockchain_ids: List[int] = Field(default_factory=list)
-    columns_names: ColumnsNames = Field(default_factory=ColumnsNames)
+    columns_names: Optional[ColumnsNames] = None
     created_at: datetime
     updated_at: datetime
 
diff --git a/engineapi/engineapi/models.py b/engineapi/engineapi/models.py
index febb5679..9e384f27 100644
--- a/engineapi/engineapi/models.py
+++ b/engineapi/engineapi/models.py
@@ -350,7 +350,7 @@ class Leaderboard(Base):  # type: ignore
     blockchain_ids = Column(ARRAY(Integer), nullable=False, default=[])
 
     wallet_connect = Column(Boolean, default=False, nullable=False)
-    columns_names = Column(JSONB, nullable=True, default={})
+    columns_names = Column(JSONB, nullable=True)
     created_at = Column(
         DateTime(timezone=True), server_default=utcnow(), nullable=False
     )