diff --git a/.coverage b/.coverage
deleted file mode 100644
index a5c0d9f..0000000
Binary files a/.coverage and /dev/null differ
diff --git a/.gitignore b/.gitignore
index cf175d2..fb0cf92 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@ p38venv
 .idea
 .pytest_cache
 .mypy_cache
+.coverage
 *.pyc
 *.log
 test.db
diff --git a/ormar/models/model.py b/ormar/models/model.py
index 3805a00..eaf4935 100644
--- a/ormar/models/model.py
+++ b/ormar/models/model.py
@@ -145,7 +145,7 @@ class Model(NewBaseModel):
 
         self_fields = self._extract_model_db_fields()
         self_fields.pop(self.get_column_name_from_alias(self.Meta.pkname))
-        self_fields = self.objects._translate_columns_to_aliases(self_fields)
+        self_fields = self.translate_columns_to_aliases(self_fields)
         expr = self.Meta.table.update().values(**self_fields)
         expr = expr.where(self.pk_column == getattr(self, self.Meta.pkname))
 
@@ -166,6 +166,6 @@ class Model(NewBaseModel):
                 "Instance was deleted from database and cannot be refreshed"
             )
         kwargs = dict(row)
-        kwargs = self.objects._translate_aliases_to_columns(kwargs)
+        kwargs = self.translate_aliases_to_columns(kwargs)
         self.from_dict(kwargs)
         return self
diff --git a/ormar/models/modelproxy.py b/ormar/models/modelproxy.py
index 760232d..61d9bc8 100644
--- a/ormar/models/modelproxy.py
+++ b/ormar/models/modelproxy.py
@@ -140,6 +140,24 @@ class ModelTableProxy:
             )
         return to_field
 
+    @classmethod
+    def translate_columns_to_aliases(cls, new_kwargs: dict) -> dict:
+        for field_name, field in cls.Meta.model_fields.items():
+            if (
+                field_name in new_kwargs
+                and field.name is not None
+                and field.name != field_name
+            ):
+                new_kwargs[field.name] = new_kwargs.pop(field_name)
+        return new_kwargs
+
+    @classmethod
+    def translate_aliases_to_columns(cls, new_kwargs: dict) -> dict:
+        for field_name, field in cls.Meta.model_fields.items():
+            if field.name in new_kwargs and field.name != field_name:
+                new_kwargs[field_name] = new_kwargs.pop(field.name)
+        return new_kwargs
+
     @classmethod
     def merge_instances_list(cls, result_rows: List["Model"]) -> List["Model"]:
         merged_rows: List["Model"] = []
diff --git a/ormar/queryset/queryset.py b/ormar/queryset/queryset.py
index df1bc01..a6c6b26 100644
--- a/ormar/queryset/queryset.py
+++ b/ormar/queryset/queryset.py
@@ -74,7 +74,7 @@ class QuerySet:
         new_kwargs = self._remove_pk_from_kwargs(new_kwargs)
         new_kwargs = self.model.substitute_models_with_pks(new_kwargs)
         new_kwargs = self._populate_default_values(new_kwargs)
-        new_kwargs = self._translate_columns_to_aliases(new_kwargs)
+        new_kwargs = self.model.translate_columns_to_aliases(new_kwargs)
         return new_kwargs
 
     def _populate_default_values(self, new_kwargs: dict) -> dict:
@@ -83,22 +83,6 @@ class QuerySet:
                 new_kwargs[field_name] = field.get_default()
         return new_kwargs
 
-    def _translate_columns_to_aliases(self, new_kwargs: dict) -> dict:
-        for field_name, field in self.model_meta.model_fields.items():
-            if (
-                field_name in new_kwargs
-                and field.name is not None
-                and field.name != field_name
-            ):
-                new_kwargs[field.name] = new_kwargs.pop(field_name)
-        return new_kwargs
-
-    def _translate_aliases_to_columns(self, new_kwargs: dict) -> dict:
-        for field_name, field in self.model_meta.model_fields.items():
-            if field.name in new_kwargs and field.name != field_name:
-                new_kwargs[field_name] = new_kwargs.pop(field.name)
-        return new_kwargs
-
     def _remove_pk_from_kwargs(self, new_kwargs: dict) -> dict:
         pkname = self.model_meta.pkname
         pk = self.model_meta.model_fields[pkname]
@@ -207,7 +191,7 @@ class QuerySet:
     async def update(self, each: bool = False, **kwargs: Any) -> int:
         self_fields = self.model.extract_db_own_fields()
         updates = {k: v for k, v in kwargs.items() if k in self_fields}
-        updates = self._translate_columns_to_aliases(updates)
+        updates = self.model.translate_columns_to_aliases(updates)
         if not each and not self.filter_clauses:
             raise QueryDefinitionError(
                 "You cannot update without filtering the queryset first. "
@@ -353,7 +337,7 @@ class QuerySet:
                     f"{self.model.__name__} has to have {pk_name} filled."
                 )
             new_kwargs = self.model.substitute_models_with_pks(new_kwargs)
-            new_kwargs = self._translate_columns_to_aliases(new_kwargs)
+            new_kwargs = self.model.translate_columns_to_aliases(new_kwargs)
             new_kwargs = {"new_" + k: v for k, v in new_kwargs.items() if k in columns}
             ready_objects.append(new_kwargs)
 
diff --git a/tests/test_models.py b/tests/test_models.py
index f33d855..26de3f1 100644
--- a/tests/test_models.py
+++ b/tests/test_models.py
@@ -1,4 +1,5 @@
 import asyncio
+import uuid
 from datetime import datetime
 from typing import List
 
@@ -6,7 +7,6 @@ import databases
 import pydantic
 import pytest
 import sqlalchemy
-import uuid
 
 import ormar
 from ormar.exceptions import QueryDefinitionError, NoMatch
@@ -437,3 +437,4 @@ async def test_start_and_end_filters():
 
             users = await User.objects.filter(name__endswith="igo").all()
             assert len(users) == 2
+