diff --git a/app/storage/mongo/__init__.py b/app/storage/mongo/__init__.py
index 2d598dd..94afe0c 100644
--- a/app/storage/mongo/__init__.py
+++ b/app/storage/mongo/__init__.py
@@ -18,11 +18,12 @@ def create_indexes():
     database.get_collection('configs').create_index([
         ('stage', 1), 
         ('project', 1),
-    ])
+        ('name', 1),
+    ], unique=True)
     database.get_collection('experiments').create_index([
         ('stage', 1), 
         ('project', 1),
-    ])
+    ], unique=True)
     database.get_collection('staff').create_index([
         ('platform_id', 1),
-    ])
+    ], unique=True)
diff --git a/app/storage/mongo/staff.py b/app/storage/mongo/staff.py
index ddc0a74..aab5539 100644
--- a/app/storage/mongo/staff.py
+++ b/app/storage/mongo/staff.py
@@ -13,6 +13,7 @@ class Staff(pydantic.BaseModel):
     yandex_id: int|None = None
     telegram_id: int|None = None
     email: str|None = None
+    telegram_username: str|None = None
 
 
 async def create(staff: Staff) -> str:
@@ -20,8 +21,8 @@ async def create(staff: Staff) -> str:
     return result.inserted_id
 
 
-async def update(platform_id: int, vk_id: int|None, yandex_id: int|None, telegram_id: int|None, email: str|None) -> bool:
-    result = await collection.update_one({'platform_id': platform_id}, {'$set': {'vk_id': vk_id, 'yandex_id': yandex_id, 'telegram_id': telegram_id, 'email': email}})
+async def update(platform_id: int, vk_id: int|None, yandex_id: int|None, telegram_id: int|None, email: str|None, telegram_username: str|None) -> bool:
+    result = await collection.update_one({'platform_id': platform_id}, {'$set': {'vk_id': vk_id, 'yandex_id': yandex_id, 'telegram_id': telegram_id, 'email': email, 'telegram_username': telegram_username}})
     return result.modified_count != 0