diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3f0ed76..2bad979 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,3 +1,4 @@
+---
 name: Test Coverage
 
 on: ["push", "pull_request"]
@@ -12,18 +13,18 @@ jobs:
         #
         # Please bump to the latest unreleased candidate
         # when you come across this and have a moment to spare!
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
     steps:
-    - uses: actions/checkout@master
-    - name: set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install -U tox tox-gh-actions
-        pip install -r requirements-tox.txt -r requirements-test.txt
-    - name: Run tox
-      run: |
-        tox -e py
+      - uses: actions/checkout@master
+      - name: set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -U tox tox-gh-actions
+          pip install -r requirements-tox.txt -r requirements-test.txt
+      - name: Run tox
+        run: |
+          tox -e py
diff --git a/marshmallow_jsonschema/__init__.py b/marshmallow_jsonschema/__init__.py
index 3e60b2a..fa254c7 100644
--- a/marshmallow_jsonschema/__init__.py
+++ b/marshmallow_jsonschema/__init__.py
@@ -1,9 +1,9 @@
-from pkg_resources import get_distribution
+from importlib.metadata import version
 
-__version__ = get_distribution("marshmallow-jsonschema").version
+__version__ = version("marshmallow-jsonschema")
 __license__ = "MIT"
 
 from .base import JSONSchema
 from .exceptions import UnsupportedValueError
 
-__all__ = ("JSONSchema", "UnsupportedValueError")
+__all__ = ("JSONSchema", "UnsupportedValueError", "__version__", "__license__")
diff --git a/marshmallow_jsonschema/base.py b/marshmallow_jsonschema/base.py
index 2db5a3d..928303b 100644
--- a/marshmallow_jsonschema/base.py
+++ b/marshmallow_jsonschema/base.py
@@ -166,9 +166,9 @@ def get_properties(self, obj) -> typing.Dict[str, typing.Dict[str, typing.Any]]:
 
         for field_name, field in fields_items_sequence:
             schema = self._get_schema_for_field(obj, field)
-            properties[
-                field.metadata.get("name") or field.data_key or field.name
-            ] = schema
+            properties[field.metadata.get("name") or field.data_key or field.name] = (
+                schema
+            )
 
         return properties
 
diff --git a/pyproject.toml b/pyproject.toml
index 461e58a..960b197 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,2 +1,2 @@
 [tool.black]
-target-version = ['py39', 'py310']
+target-version = ['py39', 'py310', 'py311', 'py312']
diff --git a/setup.py b/setup.py
index 4974e20..60d52df 100644
--- a/setup.py
+++ b/setup.py
@@ -60,11 +60,11 @@ def read(fname):
         "License :: OSI Approved :: MIT License",
         "Natural Language :: English",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
     ],
     test_suite="tests",
 )