diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index d13aa8dd3..ff0636e89 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -11,7 +11,7 @@ jobs:
   test:
     strategy:
       matrix:
-        python: [ "3.7", "3.8", "3.9", "3.10", "3.11" ]
+        python: [ "3.8", "3.9", "3.10", "3.11" ]
         os: [ ubuntu-latest, macos-latest, windows-latest ]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/an_array_with_a_recursive_ref_in_items_object_additional_properties_item.py b/end_to_end_tests/golden-record/my_test_api_client/models/an_array_with_a_recursive_ref_in_items_object_additional_properties_item.py
index 52341b8bc..3c28f9d65 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/an_array_with_a_recursive_ref_in_items_object_additional_properties_item.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/an_array_with_a_recursive_ref_in_items_object_additional_properties_item.py
@@ -14,7 +14,6 @@ class AnArrayWithARecursiveRefInItemsObjectAdditionalPropertiesItem:
     )
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         for prop_name, prop in self.additional_properties.items():
             field_dict[prop_name] = []
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/free_form_model.py b/end_to_end_tests/golden-record/my_test_api_client/models/free_form_model.py
index f8cc2151c..b22ce2b04 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/free_form_model.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/free_form_model.py
@@ -12,7 +12,6 @@ class FreeFormModel:
     additional_properties: Dict[str, Any] = attr.ib(init=False, factory=dict)
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         field_dict.update(self.additional_properties)
         field_dict.update({})
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/import_.py b/end_to_end_tests/golden-record/my_test_api_client/models/import_.py
index 276a4f21b..1d09a453f 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/import_.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/import_.py
@@ -12,7 +12,6 @@ class Import:
     additional_properties: Dict[str, Any] = attr.ib(init=False, factory=dict)
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         field_dict.update(self.additional_properties)
         field_dict.update({})
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/model_name.py b/end_to_end_tests/golden-record/my_test_api_client/models/model_name.py
index c87d4c208..ccc313a39 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/model_name.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/model_name.py
@@ -12,7 +12,6 @@ class ModelName:
     additional_properties: Dict[str, Any] = attr.ib(init=False, factory=dict)
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         field_dict.update(self.additional_properties)
         field_dict.update({})
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/model_reference_with_periods.py b/end_to_end_tests/golden-record/my_test_api_client/models/model_reference_with_periods.py
index 15bab8de5..618f79d6c 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/model_reference_with_periods.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/model_reference_with_periods.py
@@ -12,7 +12,6 @@ class ModelReferenceWithPeriods:
     additional_properties: Dict[str, Any] = attr.ib(init=False, factory=dict)
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         field_dict.update(self.additional_properties)
         field_dict.update({})
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_additional_properties_refed.py b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_additional_properties_refed.py
index d51c5d72c..1e962c1c2 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_additional_properties_refed.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_additional_properties_refed.py
@@ -14,7 +14,6 @@ class ModelWithAdditionalPropertiesRefed:
     additional_properties: Dict[str, AnEnum] = attr.ib(init=False, factory=dict)
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         for prop_name, prop in self.additional_properties.items():
             field_dict[prop_name] = prop.value
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_any_json_properties.py b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_any_json_properties.py
index d28dbb30e..caf78a3ee 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_any_json_properties.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_any_json_properties.py
@@ -26,7 +26,6 @@ def to_dict(self) -> Dict[str, Any]:
 
         field_dict: Dict[str, Any] = {}
         for prop_name, prop in self.additional_properties.items():
-
             if isinstance(prop, ModelWithAnyJsonPropertiesAdditionalPropertyType0):
                 field_dict[prop_name] = prop.to_dict()
 
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_any_json_properties_additional_property_type_0.py b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_any_json_properties_additional_property_type_0.py
index 19e863fc4..c272cfb39 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_any_json_properties_additional_property_type_0.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_any_json_properties_additional_property_type_0.py
@@ -12,7 +12,6 @@ class ModelWithAnyJsonPropertiesAdditionalPropertyType0:
     additional_properties: Dict[str, str] = attr.ib(init=False, factory=dict)
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         field_dict.update(self.additional_properties)
         field_dict.update({})
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_backslash_in_description.py b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_backslash_in_description.py
index d52952236..08ec9e878 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_backslash_in_description.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_backslash_in_description.py
@@ -14,7 +14,6 @@ class ModelWithBackslashInDescription:
     additional_properties: Dict[str, Any] = attr.ib(init=False, factory=dict)
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         field_dict.update(self.additional_properties)
         field_dict.update({})
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_primitive_additional_properties_a_date_holder.py b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_primitive_additional_properties_a_date_holder.py
index aa8a25252..0dab6e40c 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_primitive_additional_properties_a_date_holder.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_primitive_additional_properties_a_date_holder.py
@@ -14,7 +14,6 @@ class ModelWithPrimitiveAdditionalPropertiesADateHolder:
     additional_properties: Dict[str, datetime.datetime] = attr.ib(init=False, factory=dict)
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         for prop_name, prop in self.additional_properties.items():
             field_dict[prop_name] = prop.isoformat()
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_recursive_ref_in_additional_properties.py b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_recursive_ref_in_additional_properties.py
index 64d327ee6..35b3015b6 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/model_with_recursive_ref_in_additional_properties.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/model_with_recursive_ref_in_additional_properties.py
@@ -12,7 +12,6 @@ class ModelWithRecursiveRefInAdditionalProperties:
     additional_properties: Dict[str, "ModelWithRecursiveRefInAdditionalProperties"] = attr.ib(init=False, factory=dict)
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         for prop_name, prop in self.additional_properties.items():
             field_dict[prop_name] = prop.to_dict()
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/none.py b/end_to_end_tests/golden-record/my_test_api_client/models/none.py
index e1722f094..228bf05d7 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/none.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/none.py
@@ -12,7 +12,6 @@ class None_:
     additional_properties: Dict[str, Any] = attr.ib(init=False, factory=dict)
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         field_dict.update(self.additional_properties)
         field_dict.update({})
diff --git a/end_to_end_tests/golden-record/my_test_api_client/models/post_responses_unions_simple_before_complex_response_200a_type_1.py b/end_to_end_tests/golden-record/my_test_api_client/models/post_responses_unions_simple_before_complex_response_200a_type_1.py
index 6b9ae2484..bdf00654a 100644
--- a/end_to_end_tests/golden-record/my_test_api_client/models/post_responses_unions_simple_before_complex_response_200a_type_1.py
+++ b/end_to_end_tests/golden-record/my_test_api_client/models/post_responses_unions_simple_before_complex_response_200a_type_1.py
@@ -12,7 +12,6 @@ class PostResponsesUnionsSimpleBeforeComplexResponse200AType1:
     additional_properties: Dict[str, Any] = attr.ib(init=False, factory=dict)
 
     def to_dict(self) -> Dict[str, Any]:
-
         field_dict: Dict[str, Any] = {}
         field_dict.update(self.additional_properties)
         field_dict.update({})
diff --git a/end_to_end_tests/golden-record/pyproject.toml b/end_to_end_tests/golden-record/pyproject.toml
index 3a82f9afa..31adb2ddc 100644
--- a/end_to_end_tests/golden-record/pyproject.toml
+++ b/end_to_end_tests/golden-record/pyproject.toml
@@ -12,7 +12,7 @@ packages = [
 include = ["CHANGELOG.md", "my_test_api_client/py.typed"]
 
 [tool.poetry.dependencies]
-python = "^3.7"
+python = "^3.8"
 httpx = ">=0.15.4,<0.25.0"
 attrs = ">=21.3.0"
 python-dateutil = "^2.8.0"
@@ -23,7 +23,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.black]
 line-length = 120
-target_version = ['py37', 'py38', 'py39']
+target_version = ['py38', 'py39', 'py310', 'py311']
 exclude = '''
 (
   /(
diff --git a/integration-tests/pyproject.toml b/integration-tests/pyproject.toml
index a75534afb..23e3a8daf 100644
--- a/integration-tests/pyproject.toml
+++ b/integration-tests/pyproject.toml
@@ -10,7 +10,7 @@ packages = [
 include = ["CHANGELOG.md", "open_api_test_server_client/py.typed"]
 
 [tool.poetry.dependencies]
-python = "^3.7"
+python = "^3.8"
 httpx = ">=0.15.4,<0.25.0"
 attrs = ">=21.3.0"
 python-dateutil = "^2.8.0"
@@ -24,7 +24,7 @@ build-backend = "poetry.masonry.api"
 
 [tool.black]
 line-length = 120
-target_version = ['py37', 'py38', 'py39']
+target_version = ['py38', 'py39', 'py310', 'py311']
 exclude = '''
 (
   /(
diff --git a/openapi_python_client/__init__.py b/openapi_python_client/__init__.py
index 109ce84c7..e7bd51475 100644
--- a/openapi_python_client/__init__.py
+++ b/openapi_python_client/__init__.py
@@ -4,8 +4,8 @@
 import mimetypes
 import shutil
 import subprocess
-import sys
 from enum import Enum
+from importlib.metadata import version
 from pathlib import Path
 from subprocess import CalledProcessError
 from typing import Any, Dict, List, Optional, Sequence, Union
@@ -21,11 +21,6 @@
 from .parser import GeneratorData, import_string_from_class
 from .parser.errors import ErrorLevel, GeneratorError
 
-if sys.version_info.minor < 8:  # version did not exist before 3.8, need to use a backport
-    from importlib_metadata import version
-else:
-    from importlib.metadata import version  # type: ignore
-
 __version__ = version(__package__)
 
 
diff --git a/openapi_python_client/cli.py b/openapi_python_client/cli.py
index 356cf534d..7c18c6be8 100644
--- a/openapi_python_client/cli.py
+++ b/openapi_python_client/cli.py
@@ -21,7 +21,6 @@ def _version_callback(value: bool) -> None:
 
 
 def _process_config(path: Optional[pathlib.Path]) -> Config:
-
     if not path:
         return Config()
 
diff --git a/openapi_python_client/parser/openapi.py b/openapi_python_client/parser/openapi.py
index e4af95a68..05fe112c3 100644
--- a/openapi_python_client/parser/openapi.py
+++ b/openapi_python_client/parser/openapi.py
@@ -269,7 +269,6 @@ def _add_responses(
     ) -> Tuple["Endpoint", Schemas]:
         endpoint = deepcopy(endpoint)
         for code, response_data in data.items():
-
             status_code: HTTPStatus
             try:
                 status_code = HTTPStatus(int(code))
diff --git a/openapi_python_client/schema/openapi_schema_pydantic/open_api.py b/openapi_python_client/schema/openapi_schema_pydantic/open_api.py
index 50fdebd5e..0a789e64d 100644
--- a/openapi_python_client/schema/openapi_schema_pydantic/open_api.py
+++ b/openapi_python_client/schema/openapi_schema_pydantic/open_api.py
@@ -1,6 +1,5 @@
 # pylint: disable=W0611
-import sys
-from typing import List, Optional, Union
+from typing import List, Literal, Optional, Union
 
 from pydantic import BaseModel, Extra
 
@@ -12,11 +11,6 @@
 from .server import Server
 from .tag import Tag
 
-if sys.version_info.minor < 8:
-    from typing_extensions import Literal
-else:
-    from typing import Literal  # type: ignore
-
 
 class OpenAPI(BaseModel):
     """This is the root document object of the OpenAPI document.
diff --git a/openapi_python_client/templates/pyproject.toml.jinja b/openapi_python_client/templates/pyproject.toml.jinja
index bbcd5c3f6..e3ed7b57e 100644
--- a/openapi_python_client/templates/pyproject.toml.jinja
+++ b/openapi_python_client/templates/pyproject.toml.jinja
@@ -13,7 +13,7 @@ packages = [
 include = ["CHANGELOG.md", "{{ package_name }}/py.typed"]
 
 [tool.poetry.dependencies]
-python = "^3.7"
+python = "^3.8"
 httpx = ">=0.15.4,<0.25.0"
 attrs = ">=21.3.0"
 python-dateutil = "^2.8.0"
diff --git a/openapi_python_client/templates/pyproject_no_poetry.toml.jinja b/openapi_python_client/templates/pyproject_no_poetry.toml.jinja
index 3a693ff8e..ee959227d 100644
--- a/openapi_python_client/templates/pyproject_no_poetry.toml.jinja
+++ b/openapi_python_client/templates/pyproject_no_poetry.toml.jinja
@@ -1,6 +1,6 @@
 [tool.black]
 line-length = 120
-target_version = ['py37', 'py38', 'py39']
+target_version = ['py38', 'py39', 'py310', 'py311']
 exclude = '''
 (
   /(
diff --git a/openapi_python_client/templates/setup.py.jinja b/openapi_python_client/templates/setup.py.jinja
index e481786f6..c2bc949d4 100644
--- a/openapi_python_client/templates/setup.py.jinja
+++ b/openapi_python_client/templates/setup.py.jinja
@@ -12,7 +12,7 @@ setup(
     long_description=long_description,
     long_description_content_type="text/markdown",
     packages=find_packages(),
-    python_requires=">=3.7, <4",
+    python_requires=">=3.8, <4",
     install_requires=["httpx >= 0.15.0, < 0.25.0", "attrs >= 21.3.0", "python-dateutil >= 2.8.0, < 3"],
     package_data={"{{ package_name }}": ["py.typed"]},
 )
diff --git a/poetry.lock b/poetry.lock
index 787fb1ba5..477b93e52 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.4.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.4.2 and should not be changed by hand.
 
 [[package]]
 name = "anyio"
@@ -15,7 +15,6 @@ files = [
 [package.dependencies]
 idna = ">=2.8"
 sniffio = ">=1.1"
-typing-extensions = {version = "*", markers = "python_version < \"3.8\""}
 
 [package.extras]
 doc = ["sphinx-autodoc-typehints (>=1.2.0)", "sphinx-rtd-theme"]
@@ -36,7 +35,6 @@ files = [
 
 [package.dependencies]
 lazy-object-proxy = ">=1.4.0"
-typed-ast = {version = ">=1.4.0,<2.0", markers = "implementation_name == \"cpython\" and python_version < \"3.8\""}
 typing-extensions = {version = ">=3.10", markers = "python_version < \"3.10\""}
 wrapt = [
     {version = ">=1.11,<2", markers = "python_version < \"3.11\""},
@@ -79,44 +77,46 @@ tomli = {version = ">=2.0.1", markers = "python_version < \"3.11\""}
 
 [[package]]
 name = "black"
-version = "22.1.0"
+version = "23.3.0"
 description = "The uncompromising code formatter."
 category = "main"
 optional = false
-python-versions = ">=3.6.2"
+python-versions = ">=3.7"
 files = [
-    {file = "black-22.1.0-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:1297c63b9e1b96a3d0da2d85d11cd9bf8664251fd69ddac068b98dc4f34f73b6"},
-    {file = "black-22.1.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:2ff96450d3ad9ea499fc4c60e425a1439c2120cbbc1ab959ff20f7c76ec7e866"},
-    {file = "black-22.1.0-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:0e21e1f1efa65a50e3960edd068b6ae6d64ad6235bd8bfea116a03b21836af71"},
-    {file = "black-22.1.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:e2f69158a7d120fd641d1fa9a921d898e20d52e44a74a6fbbcc570a62a6bc8ab"},
-    {file = "black-22.1.0-cp310-cp310-win_amd64.whl", hash = "sha256:228b5ae2c8e3d6227e4bde5920d2fc66cc3400fde7bcc74f480cb07ef0b570d5"},
-    {file = "black-22.1.0-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:b1a5ed73ab4c482208d20434f700d514f66ffe2840f63a6252ecc43a9bc77e8a"},
-    {file = "black-22.1.0-cp36-cp36m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:35944b7100af4a985abfcaa860b06af15590deb1f392f06c8683b4381e8eeaf0"},
-    {file = "black-22.1.0-cp36-cp36m-win_amd64.whl", hash = "sha256:7835fee5238fc0a0baf6c9268fb816b5f5cd9b8793423a75e8cd663c48d073ba"},
-    {file = "black-22.1.0-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:dae63f2dbf82882fa3b2a3c49c32bffe144970a573cd68d247af6560fc493ae1"},
-    {file = "black-22.1.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:5fa1db02410b1924b6749c245ab38d30621564e658297484952f3d8a39fce7e8"},
-    {file = "black-22.1.0-cp37-cp37m-win_amd64.whl", hash = "sha256:c8226f50b8c34a14608b848dc23a46e5d08397d009446353dad45e04af0c8e28"},
-    {file = "black-22.1.0-cp38-cp38-macosx_10_9_universal2.whl", hash = "sha256:2d6f331c02f0f40aa51a22e479c8209d37fcd520c77721c034517d44eecf5912"},
-    {file = "black-22.1.0-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:742ce9af3086e5bd07e58c8feb09dbb2b047b7f566eb5f5bc63fd455814979f3"},
-    {file = "black-22.1.0-cp38-cp38-macosx_11_0_arm64.whl", hash = "sha256:fdb8754b453fb15fad3f72cd9cad3e16776f0964d67cf30ebcbf10327a3777a3"},
-    {file = "black-22.1.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:f5660feab44c2e3cb24b2419b998846cbb01c23c7fe645fee45087efa3da2d61"},
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+    {file = "black-23.3.0-cp39-cp39-win_amd64.whl", hash = "sha256:6b39abdfb402002b8a7d030ccc85cf5afff64ee90fa4c5aebc531e3ad0175ddb"},
+    {file = "black-23.3.0-py3-none-any.whl", hash = "sha256:ec751418022185b0c1bb7d7736e6933d40bbb14c14a0abcf9123d1b159f98dd4"},
+    {file = "black-23.3.0.tar.gz", hash = "sha256:1c7b8d606e728a41ea1ccbd7264677e494e87cf630e399262ced92d4a8dac940"},
 ]
 
 [package.dependencies]
 click = ">=8.0.0"
 mypy-extensions = ">=0.4.3"
+packaging = ">=22.0"
 pathspec = ">=0.9.0"
 platformdirs = ">=2"
-tomli = ">=1.1.0"
-typed-ast = {version = ">=1.4.2", markers = "python_version < \"3.8\" and implementation_name == \"cpython\""}
+tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
 typing-extensions = {version = ">=3.10.0.0", markers = "python_version < \"3.10\""}
 
 [package.extras]
@@ -166,7 +166,6 @@ files = [
 
 [package.dependencies]
 colorama = {version = "*", markers = "platform_system == \"Windows\""}
-importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
 
 [[package]]
 name = "colorama"
@@ -366,27 +365,6 @@ files = [
     {file = "idna-3.2.tar.gz", hash = "sha256:467fbad99067910785144ce333826c71fb0e63a425657295239737f7ecd125f3"},
 ]
 
-[[package]]
-name = "importlib-metadata"
-version = "6.0.0"
-description = "Read metadata from Python packages"
-category = "main"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "importlib_metadata-6.0.0-py3-none-any.whl", hash = "sha256:7efb448ec9a5e313a57655d35aa54cd3e01b7e1fbcf72dce1bf06119420f5bad"},
-    {file = "importlib_metadata-6.0.0.tar.gz", hash = "sha256:e354bedeb60efa6affdcc8ae121b73544a7aa74156d047311948f6d711cd378d"},
-]
-
-[package.dependencies]
-typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
-zipp = ">=0.5"
-
-[package.extras]
-docs = ["furo", "jaraco.packaging (>=9)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-lint"]
-perf = ["ipython"]
-testing = ["flake8 (<5)", "flufl.flake8", "importlib-resources (>=1.3)", "packaging", "pyfakefs", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.3)", "pytest-flake8", "pytest-mypy (>=0.9.1)", "pytest-perf (>=0.9.2)"]
-
 [[package]]
 name = "iniconfig"
 version = "1.1.1"
@@ -603,7 +581,6 @@ files = [
 [package.dependencies]
 mypy-extensions = ">=0.4.3"
 tomli = ">=1.1.0"
-typed-ast = {version = ">=1.4.0,<2", markers = "python_version < \"3.8\""}
 typing-extensions = ">=3.10"
 
 [package.extras]
@@ -624,19 +601,16 @@ files = [
 
 [[package]]
 name = "packaging"
-version = "21.0"
+version = "23.1"
 description = "Core utilities for Python packages"
-category = "dev"
+category = "main"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.7"
 files = [
-    {file = "packaging-21.0-py3-none-any.whl", hash = "sha256:c86254f9220d55e31cc94d69bade760f0847da8000def4dfe1c6b872fd14ff14"},
-    {file = "packaging-21.0.tar.gz", hash = "sha256:7dc96269f53a4ccec5c0670940a4281106dd0bb343f47b7471f779df49c2fbe7"},
+    {file = "packaging-23.1-py3-none-any.whl", hash = "sha256:994793af429502c4ea2ebf6bf664629d07c1a9fe974af92966e4b8d2df7edc61"},
+    {file = "packaging-23.1.tar.gz", hash = "sha256:a392980d2b6cffa644431898be54b0045151319d1e7ec34f0cfed48767dd334f"},
 ]
 
-[package.dependencies]
-pyparsing = ">=2.0.2"
-
 [[package]]
 name = "pathspec"
 version = "0.9.0"
@@ -677,9 +651,6 @@ files = [
     {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
 ]
 
-[package.dependencies]
-importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
-
 [package.extras]
 dev = ["pre-commit", "tox"]
 
@@ -816,18 +787,6 @@ typing-extensions = {version = ">=3.10.0", markers = "python_version < \"3.10\""
 spelling = ["pyenchant (>=3.2,<4.0)"]
 testutils = ["gitpython (>3)"]
 
-[[package]]
-name = "pyparsing"
-version = "2.4.7"
-description = "Python parsing module"
-category = "dev"
-optional = false
-python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-files = [
-    {file = "pyparsing-2.4.7-py2.py3-none-any.whl", hash = "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"},
-    {file = "pyparsing-2.4.7.tar.gz", hash = "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1"},
-]
-
 [[package]]
 name = "pytest"
 version = "7.2.0"
@@ -844,7 +803,6 @@ files = [
 attrs = ">=19.2.0"
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
 exceptiongroup = {version = ">=1.0.0rc8", markers = "python_version < \"3.11\""}
-importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 iniconfig = "*"
 packaging = "*"
 pluggy = ">=0.12,<2.0"
@@ -1117,46 +1075,6 @@ files = [
     {file = "tomlkit-0.11.6.tar.gz", hash = "sha256:71b952e5721688937fb02cf9d354dbcf0785066149d2855e44531ebdd2b65d73"},
 ]
 
-[[package]]
-name = "typed-ast"
-version = "1.4.3"
-description = "a fork of Python 2 and 3 ast modules with type comment support"
-category = "main"
-optional = false
-python-versions = "*"
-files = [
-    {file = "typed_ast-1.4.3-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:2068531575a125b87a41802130fa7e29f26c09a2833fea68d9a40cf33902eba6"},
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-    {file = "typed_ast-1.4.3-cp35-cp35m-manylinux2014_aarch64.whl", hash = "sha256:1b3ead4a96c9101bef08f9f7d1217c096f31667617b58de957f690c92378b528"},
-    {file = "typed_ast-1.4.3-cp35-cp35m-win32.whl", hash = "sha256:dde816ca9dac1d9c01dd504ea5967821606f02e510438120091b84e852367428"},
-    {file = "typed_ast-1.4.3-cp35-cp35m-win_amd64.whl", hash = "sha256:777a26c84bea6cd934422ac2e3b78863a37017618b6e5c08f92ef69853e765d3"},
-    {file = "typed_ast-1.4.3-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:f8afcf15cc511ada719a88e013cec87c11aff7b91f019295eb4530f96fe5ef2f"},
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-    {file = "typed_ast-1.4.3-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:f328adcfebed9f11301eaedfa48e15bdece9b519fb27e6a8c01aa52a17ec31b3"},
-    {file = "typed_ast-1.4.3-cp39-cp39-manylinux1_i686.whl", hash = "sha256:2c726c276d09fc5c414693a2de063f521052d9ea7c240ce553316f70656c84d4"},
-    {file = "typed_ast-1.4.3-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:cae53c389825d3b46fb37538441f75d6aecc4174f615d048321b716df2757fb0"},
-    {file = "typed_ast-1.4.3-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:b9574c6f03f685070d859e75c7f9eeca02d6933273b5e69572e5ff9d5e3931c3"},
-    {file = "typed_ast-1.4.3-cp39-cp39-win32.whl", hash = "sha256:209596a4ec71d990d71d5e0d312ac935d86930e6eecff6ccc7007fe54d703808"},
-    {file = "typed_ast-1.4.3-cp39-cp39-win_amd64.whl", hash = "sha256:9c6d1a54552b5330bc657b7ef0eae25d00ba7ffe85d9ea8ae6540d2197a3788c"},
-    {file = "typed_ast-1.4.3.tar.gz", hash = "sha256:fb1bbeac803adea29cedd70781399c99138358c26d05fcbd23c13016b7f5ec65"},
-]
-
 [[package]]
 name = "typer"
 version = "0.7.0"
@@ -1328,23 +1246,7 @@ files = [
     {file = "wrapt-1.15.0.tar.gz", hash = "sha256:d06730c6aed78cee4126234cf2d071e01b44b915e725a6cb439a879ec9754a3a"},
 ]
 
-[[package]]
-name = "zipp"
-version = "3.5.0"
-description = "Backport of pathlib-compatible object wrapper for zip files"
-category = "main"
-optional = false
-python-versions = ">=3.6"
-files = [
-    {file = "zipp-3.5.0-py3-none-any.whl", hash = "sha256:957cfda87797e389580cb8b9e3870841ca991e2125350677b2ca83a0e99390a3"},
-    {file = "zipp-3.5.0.tar.gz", hash = "sha256:f5812b1e007e48cff63449a5e9f4e7ebea716b4111f9c4f9a645f91d579bf0c4"},
-]
-
-[package.extras]
-docs = ["jaraco.packaging (>=8.2)", "rst.linker (>=1.9)", "sphinx"]
-testing = ["func-timeout", "jaraco.itertools", "pytest (>=4.6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.0.1)", "pytest-flake8", "pytest-mypy"]
-
 [metadata]
 lock-version = "2.0"
-python-versions = "^3.7.2"
-content-hash = "40b31823efd6fbce9be078d7f923a8c1cfa19e61217554a97b7ce37097e5a023"
+python-versions = "^3.8"
+content-hash = "dd84691c50988dc40cab0892b2f5a6f360a5284c2ef7a4dfbdff9d6a3d3352f2"
diff --git a/pyproject.toml b/pyproject.toml
index 684084a64..fb8c4c80a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,20 +19,18 @@ packages = [
 include = ["CHANGELOG.md", "openapi_python_client/py.typed"]
 
 [tool.poetry.dependencies]
-python = "^3.7.2"
+python = "^3.8"
 jinja2 = "^3.0.0"
 typer = "^0.6 || ^0.7.0"
 colorama = {version = "^0.4.3", markers = "sys_platform == 'win32'"}
 shellingham = "^1.3.2"
-black = "*"
+black = ">=23"
 isort = "^5.0.5"
-importlib_metadata = {version = ">2,<7", python = "<3.8"}
 pydantic = "^1.6.1"
 attrs = ">=21.3.0"
 python-dateutil = "^2.8.1"
 httpx = ">=0.15.4,<0.25.0"
 autoflake = "^1.4 || ^2.0.0"
-typing-extensions = { version = "*", python = "<3.8" }
 PyYAML = "^6.0"
 
 [tool.poetry.scripts]
@@ -78,7 +76,7 @@ openapi-python-client update --url https://raw.githubusercontent.com/openapi-gen
 
 [tool.black]
 line-length = 120
-target_version = ['py37', 'py38', 'py39']
+target_version = ['py38', 'py39', 'py310', 'py311']
 exclude = '''
 (
   /(
diff --git a/tests/test_parser/test_properties/test_model_property.py b/tests/test_parser/test_properties/test_model_property.py
index 8e82145bb..9d9f49a18 100644
--- a/tests/test_parser/test_properties/test_model_property.py
+++ b/tests/test_parser/test_properties/test_model_property.py
@@ -36,7 +36,6 @@ class TestModelProperty:
         ],
     )
     def test_get_type_string(self, no_optional, nullable, required, json, expected, model_property_factory, quoted):
-
         prop = model_property_factory(
             required=required,
             nullable=nullable,
@@ -73,7 +72,6 @@ def test_is_base_type(self, model_property_factory):
         ],
     )
     def test_get_base_type_string(self, quoted, expected, model_property_factory):
-
         m = model_property_factory()
         assert m.get_base_type_string(quoted=quoted) == expected