diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d92dd3d2..240df20e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ "3.7" , "3.8", "3.9", "3.10", "3.11" ]
+        python-version: [ "3.8", "3.9", "3.10", "3.11" ]
 
     services:
       mongodb:
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 8f93c624..1fa23d2d 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -16,7 +16,7 @@ repos:
     hooks:
     -   id: pyupgrade
         args:
-        - --py37-plus
+        - --py38-plus
 -   repo: https://github.com/astral-sh/ruff-pre-commit
     rev: v0.0.280
     hooks:
diff --git a/pyproject.toml b/pyproject.toml
index 705f032c..b06857ab 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ name = "starlette-admin"
 description = "Fast, beautiful and extensible administrative interface framework for Starlette/FastApi applications"
 readme = "README.md"
 license = "MIT"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 keywords = ["sqlalchemy", "sqlmodel", "mongoengine", "odmantic", "starlette", "fastapi", "admin", "dashboard", "datatables"]
 authors = [
     { name = "Jocelin Hounon", email = "hounonj@gmail.com" },
@@ -49,7 +49,7 @@ test = [
     "pytest-asyncio >=0.20.2, <0.22.0",
     "mypy ==1.4.1",
     "ruff ==0.0.280",
-    "black ==23.3.0",
+    "black ==23.7.0",
     "httpx >=0.23.3, <0.25.0",
     "coverage >=7.0.0, <7.3.0",
     "SQLAlchemy-Utils >=0.40.0, <0.42.0",
@@ -58,7 +58,7 @@ test = [
     "phonenumbers >=8.13.3, <8.14.0",
     "passlib >=1.7.4, <1.8.0",
     "backports.zoneinfo; python_version<'3.9'",
-    "sqlalchemy-file >=0.4.0, <0.5.0",
+    "sqlalchemy-file >=0.5.0, <0.6.0",
     "fasteners ==0.18",
     "PyMySQL[rsa] >=1.0.2, <1.2.0",
     "psycopg2-binary >=2.9.5, <3.0.0",
@@ -189,7 +189,7 @@ ignore = [
     "E501", # line too long, handled by black
     "N818", # Exception {name} should be named with an Error suffix
 ]
-target-version = "py37"
+target-version = "py38"
 
 [tool.ruff.isort]
 known-third-party = ["starlette_admin"]
@@ -215,7 +215,6 @@ ignore_missing_imports = true
 module = [
     "starlette_admin.contrib.sqla.helpers",
     "starlette_admin.contrib.sqla.view",
-    "starlette_admin.converters"
 ]
 warn_unused_ignores = false
 
diff --git a/starlette_admin/contrib/sqla/fields.py b/starlette_admin/contrib/sqla/fields.py
index 027f0b72..e8f6fba6 100644
--- a/starlette_admin/contrib/sqla/fields.py
+++ b/starlette_admin/contrib/sqla/fields.py
@@ -49,7 +49,7 @@ async def serialize_value(
 def _serialize_sqlalchemy_file_library(
     request: Request, value: Any, action: RequestAction, is_multiple: bool
 ) -> Optional[Union[List[Dict[str, Any]], Dict[str, Any]]]:
-    from sqlalchemy_file import File
+    from sqlalchemy_file import File  # type: ignore[attr-defined]
 
     if isinstance(value, File) or (
         isinstance(value, list) and all(isinstance(f, File) for f in value)
diff --git a/starlette_admin/converters.py b/starlette_admin/converters.py
index 42a578bb..b4bd04d4 100644
--- a/starlette_admin/converters.py
+++ b/starlette_admin/converters.py
@@ -2,7 +2,6 @@
 import decimal
 import enum
 import inspect
-import sys
 import typing
 from abc import abstractmethod
 from typing import (
@@ -12,6 +11,8 @@
     Optional,
     Sequence,
     Type,
+    get_args,
+    get_origin,
 )
 
 from starlette_admin.exceptions import NotSupportedAnnotation
@@ -30,14 +31,6 @@
     TimeField,
 )
 
-if sys.version_info >= (3, 8):  # pragma: no cover
-    from typing import get_args, get_origin
-else:  # pragma: no cover
-    try:
-        from typing_extensions import get_args, get_origin
-    except ImportError:
-        get_args, get_origin = None, None  # type: ignore[assignment]
-
 
 def converts(
     *args: Any,