diff --git a/django/db/backends/sqlite3/base.py b/django/db/backends/sqlite3/base.py
index cac91df1ba..eabcdfabe5 100644
--- a/django/db/backends/sqlite3/base.py
+++ b/django/db/backends/sqlite3/base.py
@@ -39,7 +39,7 @@ Database.register_converter("date", decoder(parse_date))
 Database.register_converter("datetime", decoder(parse_datetime))
 Database.register_converter("timestamp", decoder(parse_datetime))
 Database.register_converter("TIMESTAMP", decoder(parse_datetime))
-Database.register_converter("decimal", decoder(backend_utils.typecast_decimal))
+Database.register_converter("decimal", decoder(decimal.Decimal))
 
 Database.register_adapter(decimal.Decimal, backend_utils.rev_typecast_decimal)
 
diff --git a/django/db/backends/utils.py b/django/db/backends/utils.py
index e5b2d5235f..8d3a8ab4b3 100644
--- a/django/db/backends/utils.py
+++ b/django/db/backends/utils.py
@@ -160,12 +160,6 @@ def typecast_timestamp(s):  # does NOT store time zone information
     )
 
 
-def typecast_decimal(s):
-    if s is None:
-        return None
-    return decimal.Decimal(s)
-
-
 ###############################################
 # Converters from Python to database (string) #
 ###############################################
diff --git a/django/db/models/expressions.py b/django/db/models/expressions.py
index 9a996f66b3..b9d03111c8 100644
--- a/django/db/models/expressions.py
+++ b/django/db/models/expressions.py
@@ -1,9 +1,9 @@
 import copy
 import datetime
 from contextlib import suppress
+from decimal import Decimal
 
 from django.core.exceptions import EmptyResultSet, FieldError
-from django.db.backends import utils as backend_utils
 from django.db.models import fields
 from django.db.models.query_utils import Q
 from django.utils.deconstruct import deconstructible
@@ -289,7 +289,7 @@ class BaseExpression:
         elif internal_type.endswith('IntegerField'):
             return int(value)
         elif internal_type == 'DecimalField':
-            return backend_utils.typecast_decimal(value)
+            return Decimal(value)
         return value
 
     def get_lookup(self, lookup):