diff --git a/src/arcaea_offline/database/models/chart_info.py b/src/arcaea_offline/database/models/chart_info.py
index 360cbac..c85566a 100644
--- a/src/arcaea_offline/database/models/chart_info.py
+++ b/src/arcaea_offline/database/models/chart_info.py
@@ -5,6 +5,8 @@ from typing import TYPE_CHECKING, Optional
 from sqlalchemy import ForeignKeyConstraint, Integer, Numeric, String
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
+from arcaea_offline.utils import Version
+
 from ._base import ModelBase, ReprHelper
 from ._types import ForceTimezoneDateTime
 
@@ -30,4 +32,4 @@ class ChartInfo(ModelBase, ReprHelper):
     constant: Mapped[Decimal] = mapped_column(Numeric, nullable=False)
     notes: Mapped[Optional[int]] = mapped_column(Integer)
     added_at: Mapped[datetime] = mapped_column(ForceTimezoneDateTime, primary_key=True)
-    version: Mapped[Optional[str]] = mapped_column(String)
+    version: Mapped[Optional[Version]]
diff --git a/src/arcaea_offline/database/models/difficulty.py b/src/arcaea_offline/database/models/difficulty.py
index 744c8d2..025665f 100644
--- a/src/arcaea_offline/database/models/difficulty.py
+++ b/src/arcaea_offline/database/models/difficulty.py
@@ -13,6 +13,8 @@ from sqlalchemy import (
 )
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
+from arcaea_offline.utils import Version
+
 from ._base import ModelBase, ReprHelper
 from ._types import ForceTimezoneDateTime
 
@@ -65,7 +67,7 @@ class Difficulty(ModelBase, ReprHelper):
     bpm: Mapped[Optional[str]] = mapped_column(String)
     bpm_base: Mapped[Optional[Decimal]] = mapped_column(Numeric(asdecimal=True))
     added_at: Mapped[Optional[datetime]] = mapped_column(ForceTimezoneDateTime)
-    version: Mapped[Optional[str]] = mapped_column(String)
+    version: Mapped[Optional[Version]]
     is_legacy11: Mapped[bool] = mapped_column(
         Boolean, nullable=False, insert_default=False, server_default=text("0")
     )
diff --git a/src/arcaea_offline/database/models/song.py b/src/arcaea_offline/database/models/song.py
index ddb89c5..67d5fb3 100644
--- a/src/arcaea_offline/database/models/song.py
+++ b/src/arcaea_offline/database/models/song.py
@@ -5,6 +5,8 @@ from typing import TYPE_CHECKING, Optional
 from sqlalchemy import Boolean, ForeignKey, Integer, Numeric, String, text
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
+from arcaea_offline.utils import Version
+
 from ._base import ModelBase, ReprHelper
 from ._types import ForceTimezoneDateTime
 
@@ -42,7 +44,7 @@ class Song(ModelBase, ReprHelper):
     added_at: Mapped[datetime] = mapped_column(
         ForceTimezoneDateTime, nullable=False, index=True
     )
-    version: Mapped[Optional[str]] = mapped_column(String)
+    version: Mapped[Optional[Version]]
 
     bpm: Mapped[Optional[str]] = mapped_column(String)
     bpm_base: Mapped[Optional[Decimal]] = mapped_column(Numeric(asdecimal=True))