diff --git a/backend/domain/models/AdminDataclass.py b/backend/domain/models/AdminDataclass.py
index d1b28923..646cb390 100644
--- a/backend/domain/models/AdminDataclass.py
+++ b/backend/domain/models/AdminDataclass.py
@@ -1,8 +1,5 @@
-from dataclasses import dataclass
-
 from domain.models.UserDataclass import UserDataclass
 
 
-@dataclass()
 class AdminDataclass(UserDataclass):
     pass
diff --git a/backend/domain/models/GroupDataclass.py b/backend/domain/models/GroupDataclass.py
index 671667e9..e14914e5 100644
--- a/backend/domain/models/GroupDataclass.py
+++ b/backend/domain/models/GroupDataclass.py
@@ -1,9 +1,6 @@
-from dataclasses import dataclass
-
 from pydantic import BaseModel
 
 
-@dataclass()
 class GroupDataclass(BaseModel):
     id: int
     project_id: int
diff --git a/backend/domain/models/ProjectDataclass.py b/backend/domain/models/ProjectDataclass.py
index 07826132..bca35785 100644
--- a/backend/domain/models/ProjectDataclass.py
+++ b/backend/domain/models/ProjectDataclass.py
@@ -1,10 +1,8 @@
-from dataclasses import dataclass
 from datetime import datetime
 
 from pydantic import BaseModel, PositiveInt
 
 
-@dataclass()
 class ProjectDataclass(BaseModel):
     id: int
     name: str
diff --git a/backend/domain/models/StudentDataclass.py b/backend/domain/models/StudentDataclass.py
index 3f46b7d5..fe30af4e 100644
--- a/backend/domain/models/StudentDataclass.py
+++ b/backend/domain/models/StudentDataclass.py
@@ -1,8 +1,5 @@
-from dataclasses import dataclass
-
 from domain.models.UserDataclass import UserDataclass
 
 
-@dataclass()
 class StudentDataclass(UserDataclass):
     pass
diff --git a/backend/domain/models/SubjectDataclass.py b/backend/domain/models/SubjectDataclass.py
index 9be302fd..eb92c063 100644
--- a/backend/domain/models/SubjectDataclass.py
+++ b/backend/domain/models/SubjectDataclass.py
@@ -1,9 +1,6 @@
-from dataclasses import dataclass
-
 from pydantic import BaseModel
 
 
-@dataclass()
 class SubjectDataclass(BaseModel):
     id: int
     name: str
diff --git a/backend/domain/models/SubmissionDataclass.py b/backend/domain/models/SubmissionDataclass.py
index 79a85961..6dcc2854 100644
--- a/backend/domain/models/SubmissionDataclass.py
+++ b/backend/domain/models/SubmissionDataclass.py
@@ -1,5 +1,4 @@
 import enum
-from dataclasses import dataclass
 from datetime import datetime
 
 from pydantic import BaseModel
@@ -11,7 +10,6 @@ class SubmissionState(enum.Enum):
     Rejected = 3
 
 
-@dataclass()
 class SubmissionDataclass(BaseModel):
     id: int
     date_time: datetime
diff --git a/backend/domain/models/TeacherDataclass.py b/backend/domain/models/TeacherDataclass.py
index d36d1215..ddf3e95d 100644
--- a/backend/domain/models/TeacherDataclass.py
+++ b/backend/domain/models/TeacherDataclass.py
@@ -1,8 +1,5 @@
-from dataclasses import dataclass
-
 from domain.models.UserDataclass import UserDataclass
 
 
-@dataclass()
 class TeacherDataclass(UserDataclass):
     pass
diff --git a/backend/domain/models/UserDataclass.py b/backend/domain/models/UserDataclass.py
index 791a864d..33e94a5d 100644
--- a/backend/domain/models/UserDataclass.py
+++ b/backend/domain/models/UserDataclass.py
@@ -1,9 +1,6 @@
-from dataclasses import dataclass
-
 from pydantic import BaseModel, EmailStr
 
 
-@dataclass()
 class UserDataclass(BaseModel):
     id: int
     name: str