diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 9722543..4edc2df 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,7 +1,7 @@
-
 3.1.0 (TBD)
 -----------------
 - Remove the deprecated `Context` extension (#138, @vincentsarago)
+- Rename `stac_pydantic.api.conformance.ConformanceClasses` to `stac_pydantic.api.conformance.Conformance`
 - Update pre-commit configuration and switch to astral-sh/ruff for linter and formater
 - Add official support for python 3.12
 
diff --git a/stac_pydantic/api/__init__.py b/stac_pydantic/api/__init__.py
index 143acf7..79294fe 100644
--- a/stac_pydantic/api/__init__.py
+++ b/stac_pydantic/api/__init__.py
@@ -1,8 +1,34 @@
-# flake8: noqa: F401
+"""STAC API models."""
+
+import warnings
+
 from .collection import Collection
 from .collections import Collections
-from .conformance import ConformanceClasses
+from .conformance import Conformance
 from .item import Item
 from .item_collection import ItemCollection
 from .landing import LandingPage
 from .search import Search
+
+__all__ = [
+    "Collection",
+    "Collections",
+    "Conformance",
+    "Item",
+    "ItemCollection",
+    "LandingPage",
+    "Search",
+]
+
+
+# TODO: remove in 4.0
+def __getattr__(name):
+    if name == "ConformanceClasses":
+        warnings.warn(
+            "Class `ConformanceClasses` has been renamed to `Conformance`. Please use the new name. The old alias will be removed in a future version.",
+            DeprecationWarning,
+            stacklevel=2,
+        )
+        return Conformance
+
+    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
diff --git a/stac_pydantic/api/conformance.py b/stac_pydantic/api/conformance.py
index 957c8b5..94eb915 100644
--- a/stac_pydantic/api/conformance.py
+++ b/stac_pydantic/api/conformance.py
@@ -3,7 +3,7 @@
 from pydantic import AnyHttpUrl, BaseModel
 
 
-class ConformanceClasses(BaseModel):
+class Conformance(BaseModel):
     """
     https://github.com/radiantearth/stac-api-spec/blob/master/api-spec.md#ogc-api---features-endpoints
     """
diff --git a/tests/api/test_conformance.py b/tests/api/test_conformance.py
index 234ef6a..22b71f1 100644
--- a/tests/api/test_conformance.py
+++ b/tests/api/test_conformance.py
@@ -1,15 +1,20 @@
 import pytest
 from pydantic import ValidationError
 
-from stac_pydantic.api.conformance import ConformanceClasses
+from stac_pydantic.api.conformance import Conformance
+
+
+def test_deprecation():
+    with pytest.warns(DeprecationWarning):
+        from stac_pydantic.api import ConformanceClasses  # noqa
 
 
 def test_api_conformance():
-    ConformanceClasses(
+    Conformance(
         conformsTo=["https://conformance-class-1", "http://conformance-class-2"]
     )
 
 
 def test_api_conformance_invalid_url():
     with pytest.raises(ValidationError):
-        ConformanceClasses(conformsTo=["s3://conformance-class"])
+        Conformance(conformsTo=["s3://conformance-class"])