diff --git a/src/apispec_plugins/__init__.py b/src/apispec_plugins/__init__.py
index 6130a8e..7d1b23d 100644
--- a/src/apispec_plugins/__init__.py
+++ b/src/apispec_plugins/__init__.py
@@ -1,12 +1,13 @@
 from importlib import metadata
 
 from .utils import spec_from
-from .ext.pydantic import PydanticPlugin
+from .ext.pydantic import BaseModel, PydanticPlugin
 from .webframeworks.flask import FlaskPlugin
 from .base.mixin import DataclassSchemaMixin, RegistryMixin
 
 __version__ = metadata.version("apispec-plugins")
 __all__ = (
+    BaseModel,
     DataclassSchemaMixin,
     FlaskPlugin,
     PydanticPlugin,
diff --git a/src/apispec_plugins/ext/pydantic.py b/src/apispec_plugins/ext/pydantic.py
index 93089a5..886530c 100644
--- a/src/apispec_plugins/ext/pydantic.py
+++ b/src/apispec_plugins/ext/pydantic.py
@@ -5,8 +5,12 @@
 
 from apispec import BasePlugin, APISpec
 from apispec.exceptions import APISpecError, DuplicateComponentNameError
-from apispec_plugins.base.registry import Registry
-from pydantic import BaseModel
+from apispec_plugins.base.mixin import RegistryMixin
+from pydantic import BaseModel as PBaseModel
+
+
+class BaseModel(PBaseModel, RegistryMixin):
+    """Extend BaseModel with Registry"""
 
 
 class PydanticPlugin(BasePlugin):
@@ -152,7 +156,7 @@ def resolve_schema_instance(
         elif isinstance(schema, BaseModel):
             return schema.__class__
         elif isinstance(schema, str):
-            return Registry.get_cls(schema)
+            return BaseModel.get_cls(schema)
         return None
 
     @classmethod
diff --git a/tests/conftest.py b/tests/conftest.py
index 5535cf9..6951d5b 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,9 +1,8 @@
 from typing import Optional
 
-from apispec_plugins.base.mixin import RegistryMixin
-from pydantic import BaseModel
+from apispec_plugins.ext.pydantic import BaseModel
 
 
-class Pet(BaseModel, RegistryMixin):
+class Pet(BaseModel):
     id: Optional[int]
     name: str