diff --git a/fbpcp/entity/mpc_game_config.py b/fbpcp/entity/mpc_game_config.py
index 2d9fe569..542a90d5 100644
--- a/fbpcp/entity/mpc_game_config.py
+++ b/fbpcp/entity/mpc_game_config.py
@@ -8,6 +8,14 @@
 
 from dataclasses import dataclass
 from typing import List
+from warnings import warn
+
+
+warn(
+    f"{__file__} has been moved to fbpcs repo. Please consider https://github.com/facebookresearch/fbpcs/tree/main/fbpcs/private_computation/service/mpc instead.",
+    DeprecationWarning,
+    stacklevel=2,
+)
 
 
 @dataclass
diff --git a/fbpcp/entity/mpc_instance.py b/fbpcp/entity/mpc_instance.py
index 513472b0..4e3f98a8 100644
--- a/fbpcp/entity/mpc_instance.py
+++ b/fbpcp/entity/mpc_instance.py
@@ -9,10 +9,18 @@
 from dataclasses import dataclass
 from enum import Enum
 from typing import Any, Dict, List, Optional
+from warnings import warn
 
 from fbpcp.entity.container_instance import ContainerInstance
 
 
+warn(
+    f"{__file__} has been moved to fbpcs repo. Please consider https://github.com/facebookresearch/fbpcs/tree/main/fbpcs/private_computation/service/mpc instead.",
+    DeprecationWarning,
+    stacklevel=2,
+)
+
+
 class MPCParty(Enum):
     SERVER = "SERVER"
     CLIENT = "CLIENT"
diff --git a/fbpcp/repository/mpc_game_repository.py b/fbpcp/repository/mpc_game_repository.py
index 3fe00f65..08128860 100644
--- a/fbpcp/repository/mpc_game_repository.py
+++ b/fbpcp/repository/mpc_game_repository.py
@@ -7,10 +7,18 @@
 # pyre-strict
 
 import abc
+from warnings import warn
 
 from fbpcp.entity.mpc_game_config import MPCGameConfig
 
 
+warn(
+    f"{__file__} has been moved to fbpcs repo. Please consider https://github.com/facebookresearch/fbpcs/tree/main/fbpcs/private_computation/service/mpc instead.",
+    DeprecationWarning,
+    stacklevel=2,
+)
+
+
 class MPCGameRepository(abc.ABC):
     @abc.abstractmethod
     def get_game(self, name: str) -> MPCGameConfig:
diff --git a/fbpcp/repository/mpc_instance.py b/fbpcp/repository/mpc_instance.py
index 29f3bda1..3cd61031 100644
--- a/fbpcp/repository/mpc_instance.py
+++ b/fbpcp/repository/mpc_instance.py
@@ -7,10 +7,18 @@
 # pyre-strict
 
 import abc
+from warnings import warn
 
 from fbpcp.entity.mpc_instance import MPCInstance
 
 
+warn(
+    f"{__file__} has been moved to fbpcs repo. Please consider https://github.com/facebookresearch/fbpcs/tree/main/fbpcs/private_computation/service/mpc instead.",
+    DeprecationWarning,
+    stacklevel=2,
+)
+
+
 class MPCInstanceRepository(abc.ABC):
     @abc.abstractmethod
     def create(self, instance: MPCInstance) -> None:
diff --git a/fbpcp/service/mpc.py b/fbpcp/service/mpc.py
index 6ffd4eb1..18f25acd 100644
--- a/fbpcp/service/mpc.py
+++ b/fbpcp/service/mpc.py
@@ -10,6 +10,8 @@
 import logging
 from typing import Any, Dict, List, Optional
 
+from warnings import warn
+
 from fbpcp.entity.certificate_request import CertificateRequest
 
 from fbpcp.entity.container_instance import ContainerInstance, ContainerInstanceStatus
@@ -24,6 +26,13 @@
 DEFAULT_BINARY_VERSION = "latest"
 
 
+warn(
+    f"{__file__} has been moved to fbpcs repo. Please consider https://github.com/facebookresearch/fbpcs/tree/main/fbpcs/private_computation/service/mpc instead.",
+    DeprecationWarning,
+    stacklevel=2,
+)
+
+
 class MPCService:
     """MPCService is responsible for distributing a larger MPC game to multiple
     MPC workers
@@ -43,6 +52,13 @@ def __init__(
         task_definition -- containers task definition
         mpc_game_svc -- service to generate package name and game arguments.
         """
+
+        warn(
+            f"{self.__class__.__name__} has been moved to fbpcs repo. Please consider https://github.com/facebookresearch/fbpcs/tree/main/fbpcs/private_computation/service/mpc instead.",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+
         if container_svc is None or instance_repository is None or mpc_game_svc is None:
             raise ValueError(
                 f"Dependency is missing. container_svc={container_svc}, mpc_game_svc={mpc_game_svc}, "
diff --git a/fbpcp/service/mpc_game.py b/fbpcp/service/mpc_game.py
index 9f5e759c..789858fb 100644
--- a/fbpcp/service/mpc_game.py
+++ b/fbpcp/service/mpc_game.py
@@ -8,6 +8,7 @@
 
 import logging
 from typing import Any, Dict, Optional, Tuple
+from warnings import warn
 
 from fbpcp.entity.mpc_game_config import MPCGameConfig
 from fbpcp.entity.mpc_instance import MPCParty
@@ -18,8 +19,20 @@
 LIFT_AGGREGATOR_GAME_NAME = "aggregator"
 
 
+warn(
+    f"{__file__} has been moved to fbpcs repo. Please consider https://github.com/facebookresearch/fbpcs/tree/main/fbpcs/private_computation/service/mpc instead.",
+    DeprecationWarning,
+    stacklevel=2,
+)
+
+
 class MPCGameService:
     def __init__(self, mpc_game_repository: MPCGameRepository) -> None:
+        warn(
+            f"{self.__class__.__name__} has been moved to fbpcs repo. Please consider https://github.com/facebookresearch/fbpcs/tree/main/fbpcs/private_computation/service/mpc instead.",
+            DeprecationWarning,
+            stacklevel=2,
+        )
         self.logger: logging.Logger = logging.getLogger(__name__)
         self.mpc_game_repository: MPCGameRepository = mpc_game_repository
 
diff --git a/tests/service/test_mpc_do_not_change.py b/tests/service/test_mpc_do_not_change.py
index d7963c59..1c817144 100644
--- a/tests/service/test_mpc_do_not_change.py
+++ b/tests/service/test_mpc_do_not_change.py
@@ -8,6 +8,7 @@
 # This test file is a short-term to freeze the file change during migration.
 # After migration completed, we shall delete this ut test
 # TODO: T137598681 clean up FBPCS mpc related files after migration complete
+# NOTE: please make further change on fbcode/fbpcs/private_computation/service/mpc/
 #############################################################################
 import hashlib
 import inspect
@@ -27,7 +28,7 @@
 NO_CHANGE_FILES = (
     {
         "cls": MPCService,
-        "file_md5": "35dbe2a73b1016d6d631b03abc612929",
+        "file_md5": "45dc9ee0e1f36882c06c6959b3a7d365",
     },
     {
         "cls": TestMPCService,
@@ -35,7 +36,7 @@
     },
     {
         "cls": MPCGameService,
-        "file_md5": "36a2142e36759e382855e970f12c7403",
+        "file_md5": "b6e129eed50447bcbc7a7c0537771130",
     },
     {
         "cls": TestMPCGameService,
@@ -43,19 +44,19 @@
     },
     {
         "cls": MPCGameConfig,
-        "file_md5": "39326c1de0bb8795313ce84560d25c97",
+        "file_md5": "02d7ca709340b4fb6aa3f1a3d1616e29",
     },
     {
         "cls": MPCGameRepository,
-        "file_md5": "d2d09421e3ab8c612a2208d7a0269996",
+        "file_md5": "3ce0126b0a3602c362789e6a17e1bb0e",
     },
     {
         "cls": MPCInstance,
-        "file_md5": "4a52cc896d438cb8900649265eb46b71",
+        "file_md5": "f461fe24c29f68b1350c96567ddf28ef",
     },
     {
         "cls": MPCInstanceRepository,
-        "file_md5": "251b27ef762c7421a43fe1e8062ce86b",
+        "file_md5": "9e3e1b712782fbec3f9a869d13954e08",
     },
 )
 
@@ -68,7 +69,7 @@ def test_mpc_service_no_change(self):
             self.assertEqual(
                 no_change_file["file_md5"],
                 self.gen_file_md5(file_name),
-                msg=f"assertion on file: {file_name}",
+                msg=f"assertion on file: {file_name}. you should change mpc in fbcode/fbpcs/private_computation/service/mpc/",
             )
 
     def gen_file_md5(self, file_name):