diff --git a/alembic/versions/20260104_0000_initial_schema.py b/alembic/versions/20260104_0000_initial_schema.py
index 9ab69b6..902fd87 100644
--- a/alembic/versions/20260104_0000_initial_schema.py
+++ b/alembic/versions/20260104_0000_initial_schema.py
@@ -5,16 +5,16 @@ Revises:
 Create Date: 2026-01-04 00:00:00.000000+00:00
 """
 
-from typing import Sequence, Union
+from collections.abc import Sequence
 
 import sqlalchemy as sa
 from alembic import op
 
 # revision identifiers, used by Alembic.
 revision: str = "001_initial"
-down_revision: Union[str, None] = None
-branch_labels: Union[str, Sequence[str], None] = None
-depends_on: Union[str, Sequence[str], None] = None
+down_revision: str | None = None
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
 
 
 def upgrade() -> None: