diff --git a/pyproject.toml b/pyproject.toml
index 22e3355..b35914f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "tp-auth-serverside"
-version = "0.1.1"
+version = "0.1.2"
 description = "A server side authentication utility which stores session tokens in memory db."
 readme = "README.md"
 requires-python = ">=3.12"
diff --git a/src/tp_auth_serverside/core/fastapi_configurer.py b/src/tp_auth_serverside/core/fastapi_configurer.py
index fd1afdb..34cca4e 100644
--- a/src/tp_auth_serverside/core/fastapi_configurer.py
+++ b/src/tp_auth_serverside/core/fastapi_configurer.py
@@ -5,6 +5,7 @@
 from fastapi import APIRouter, Depends, FastAPI, Request, Response
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.openapi.utils import get_openapi
+from fastapi.responses import ORJSONResponse
 from fastapi.security import OAuth2PasswordRequestForm
 from pydantic import BaseModel
 from typing_extensions import Annotated
@@ -146,6 +147,7 @@ def generate_fastapi_app(
         redoc_url=app_config.redoc_url,
         lifespan=app_config.lifespan,
         exception_handlers=app_config.exception_handlers,
+        default_response_class=ORJSONResponse,
     )
     app.openapi = get_custom_api(app, app_config, disable_operation_default)
     if isinstance(health_check_routine, tuple):
diff --git a/uv.lock b/uv.lock
index 666471a..53a6914 100644
--- a/uv.lock
+++ b/uv.lock
@@ -646,7 +646,7 @@ wheels = [
 
 [[package]]
 name = "tp-auth-serverside"
-version = "0.1.0"
+version = "0.1.2"
 source = { editable = "." }
 dependencies = [
     { name = "cryptography" },