diff --git a/event_model/__init__.py b/event_model/__init__.py
index ff0e34ef..37d3688c 100644
--- a/event_model/__init__.py
+++ b/event_model/__init__.py
@@ -7,15 +7,12 @@
 import sys
 import threading
 import time as ttime
-import types
 import uuid
 import warnings
 import weakref
 from collections import defaultdict, deque
 from dataclasses import dataclass
 from enum import Enum
-from functools import partial
-from importlib.metadata import metadata
 from importlib.metadata import version as importlib_version
 from typing import (
     Any,
diff --git a/event_model/tests/test_em.py b/event_model/tests/test_em.py
index dde91b69..ca9a8fcc 100644
--- a/event_model/tests/test_em.py
+++ b/event_model/tests/test_em.py
@@ -1,7 +1,6 @@
 import json
 import pickle
 
-import jsonschema
 import numpy
 import pytest
 
diff --git a/event_model/tests/test_projections.py b/event_model/tests/test_projections.py
index a9edff11..eed493ad 100644
--- a/event_model/tests/test_projections.py
+++ b/event_model/tests/test_projections.py
@@ -1,4 +1,3 @@
-import jsonschema
 import pytest
 from jsonschema.exceptions import ValidationError
 
diff --git a/pyproject.toml b/pyproject.toml
index 96ec2212..9bad3631 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,6 +11,7 @@ classifiers = [
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
 ]
 description = "Data model used by the bluesky ecosystem"
 dependencies = [