diff --git a/sqlmodel/main.py b/sqlmodel/main.py
index 84478f24cf..388c45a388 100644
--- a/sqlmodel/main.py
+++ b/sqlmodel/main.py
@@ -3,6 +3,7 @@
 import builtins
 import ipaddress
 import uuid
+import warnings
 import weakref
 from collections.abc import Mapping, Sequence, Set
 from datetime import date, datetime, time, timedelta
@@ -11,6 +12,7 @@
 from pathlib import Path
 from typing import (
     TYPE_CHECKING,
+    Annotated,
     Any,
     Callable,
     ClassVar,
@@ -89,6 +91,11 @@
 ]
 OnDeleteType = Literal["CASCADE", "SET NULL", "RESTRICT"]
 
+CONST_DEPRECATION_MSG = "`const` is deprecated and doesn't work, use `Literal` instead"
+UNIQUE_ITEMS_DEPRECATION_MSG = (
+    "`unique_items` is deprecated and doesn't work, use `set` type instead"
+)
+
 
 def __dataclass_transform__(
     *,
@@ -213,7 +220,10 @@ def Field(
     description: Optional[str] = None,
     exclude: Union[Set[Union[int, str]], Mapping[Union[int, str], Any], Any] = None,
     include: Union[Set[Union[int, str]], Mapping[Union[int, str], Any], Any] = None,
-    const: Optional[bool] = None,
+    const: Annotated[
+        Optional[bool],
+        deprecated(CONST_DEPRECATION_MSG),
+    ] = None,
     gt: Optional[float] = None,
     ge: Optional[float] = None,
     lt: Optional[float] = None,
@@ -223,7 +233,10 @@ def Field(
     decimal_places: Optional[int] = None,
     min_items: Optional[int] = None,
     max_items: Optional[int] = None,
-    unique_items: Optional[bool] = None,
+    unique_items: Annotated[
+        Optional[bool],
+        deprecated(UNIQUE_ITEMS_DEPRECATION_MSG),
+    ] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
     allow_mutation: bool = True,
@@ -256,7 +269,10 @@ def Field(
     description: Optional[str] = None,
     exclude: Union[Set[Union[int, str]], Mapping[Union[int, str], Any], Any] = None,
     include: Union[Set[Union[int, str]], Mapping[Union[int, str], Any], Any] = None,
-    const: Optional[bool] = None,
+    const: Annotated[
+        Optional[bool],
+        deprecated(CONST_DEPRECATION_MSG),
+    ] = None,
     gt: Optional[float] = None,
     ge: Optional[float] = None,
     lt: Optional[float] = None,
@@ -266,7 +282,10 @@ def Field(
     decimal_places: Optional[int] = None,
     min_items: Optional[int] = None,
     max_items: Optional[int] = None,
-    unique_items: Optional[bool] = None,
+    unique_items: Annotated[
+        Optional[bool],
+        deprecated(UNIQUE_ITEMS_DEPRECATION_MSG),
+    ] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
     allow_mutation: bool = True,
@@ -308,7 +327,10 @@ def Field(
     description: Optional[str] = None,
     exclude: Union[Set[Union[int, str]], Mapping[Union[int, str], Any], Any] = None,
     include: Union[Set[Union[int, str]], Mapping[Union[int, str], Any], Any] = None,
-    const: Optional[bool] = None,
+    const: Annotated[
+        Optional[bool],
+        deprecated(CONST_DEPRECATION_MSG),
+    ] = None,
     gt: Optional[float] = None,
     ge: Optional[float] = None,
     lt: Optional[float] = None,
@@ -318,7 +340,10 @@ def Field(
     decimal_places: Optional[int] = None,
     min_items: Optional[int] = None,
     max_items: Optional[int] = None,
-    unique_items: Optional[bool] = None,
+    unique_items: Annotated[
+        Optional[bool],
+        deprecated(UNIQUE_ITEMS_DEPRECATION_MSG),
+    ] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
     allow_mutation: bool = True,
@@ -341,7 +366,10 @@ def Field(
     description: Optional[str] = None,
     exclude: Union[Set[Union[int, str]], Mapping[Union[int, str], Any], Any] = None,
     include: Union[Set[Union[int, str]], Mapping[Union[int, str], Any], Any] = None,
-    const: Optional[bool] = None,
+    const: Annotated[
+        Optional[bool],
+        deprecated(CONST_DEPRECATION_MSG),
+    ] = None,
     gt: Optional[float] = None,
     ge: Optional[float] = None,
     lt: Optional[float] = None,
@@ -351,7 +379,10 @@ def Field(
     decimal_places: Optional[int] = None,
     min_items: Optional[int] = None,
     max_items: Optional[int] = None,
-    unique_items: Optional[bool] = None,
+    unique_items: Annotated[
+        Optional[bool],
+        deprecated(UNIQUE_ITEMS_DEPRECATION_MSG),
+    ] = None,
     min_length: Optional[int] = None,
     max_length: Optional[int] = None,
     allow_mutation: bool = True,
@@ -371,6 +402,12 @@ def Field(
     schema_extra: Optional[dict[str, Any]] = None,
 ) -> Any:
     current_schema_extra = schema_extra or {}
+
+    if const is not None:
+        warnings.warn(CONST_DEPRECATION_MSG, DeprecationWarning, stacklevel=2)
+    if unique_items is not None:
+        warnings.warn(UNIQUE_ITEMS_DEPRECATION_MSG, DeprecationWarning, stacklevel=2)
+
     # Extract possible alias settings from schema_extra so we can control precedence
     schema_validation_alias = current_schema_extra.pop("validation_alias", None)
     schema_serialization_alias = current_schema_extra.pop("serialization_alias", None)
@@ -380,7 +417,6 @@ def Field(
         "description": description,
         "exclude": exclude,
         "include": include,
-        "const": const,
         "gt": gt,
         "ge": ge,
         "lt": lt,
@@ -390,7 +426,6 @@ def Field(
         "decimal_places": decimal_places,
         "min_items": min_items,
         "max_items": max_items,
-        "unique_items": unique_items,
         "min_length": min_length,
         "max_length": max_length,
         "allow_mutation": allow_mutation,
diff --git a/tests/test_pydantic/test_field.py b/tests/test_pydantic/test_field.py
index 140b02fd9b..0608abe660 100644
--- a/tests/test_pydantic/test_field.py
+++ b/tests/test_pydantic/test_field.py
@@ -54,3 +54,23 @@ class Model(SQLModel):
 
     instance = Model(id=123, foo="bar")
     assert "foo=" not in repr(instance)
+
+
+def test_const_is_deprecated():
+    with pytest.warns(
+        DeprecationWarning,
+        match="`const` is deprecated and doesn't work, use `Literal` instead",
+    ):
+
+        class Model(SQLModel):
+            int_value: int = Field(default=10, const=True)
+
+
+def test_unique_items_is_deprecated():
+    with pytest.warns(
+        DeprecationWarning,
+        match="`unique_items` is deprecated and doesn't work, use `set` type instead",
+    ):
+
+        class Model(SQLModel):
+            values: list[int] = Field(unique_items=True)