diff --git a/pydantic_br/fields/base_field_v2.py b/pydantic_br/fields/base_field_v2.py
index c5f88f0..ca82eb3 100644
--- a/pydantic_br/fields/base_field_v2.py
+++ b/pydantic_br/fields/base_field_v2.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import Any, Dict, Mapping, TypeAlias
+from typing import Any, Dict, Mapping
 
 from ..get_versions import get_pydantic_version
 
@@ -13,7 +13,7 @@
     except ModuleNotFoundError:
         raise ModuleNotFoundError("Are you sure you installed pydantic_core")
 
-CoreSchema: TypeAlias = Mapping[str, Any]
+CoreSchema: Any = Mapping[str, Any]
 JsonSchemaValue = Dict[str, Any]