diff --git a/etebase_server/fastapi/msgpack.py b/etebase_server/fastapi/msgpack.py
index 94a4fa5..496a75a 100644
--- a/etebase_server/fastapi/msgpack.py
+++ b/etebase_server/fastapi/msgpack.py
@@ -27,7 +27,7 @@ class MsgpackResponse(Response):
             return b""
 
         if isinstance(content, BaseModel):
-            content = content.dict()
+            content = content.model_dump()
         return msgpack_encode(content)
 
 
diff --git a/etebase_server/fastapi/utils.py b/etebase_server/fastapi/utils.py
index fbba474..0b28875 100644
--- a/etebase_server/fastapi/utils.py
+++ b/etebase_server/fastapi/utils.py
@@ -25,10 +25,7 @@ T = t.TypeVar("T", bound=Model, covariant=True)
 
 
 class BaseModel(PyBaseModel):
-    class Config:
-        json_encoders = {
-            bytes: lambda x: x,
-        }
+    pass
 
 
 @dataclasses.dataclass