diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 33ce501..7381f37 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -49,7 +49,7 @@ jobs:
             setup.py
 
       - name: Install dependencies
-        run: python -m pip install -r requirements.txt -e ".[dev]" -e ".[docs]"
+        run: python -m pip install -r requirements.txt -e ".[dev]"
 
       - name: Set up pyright
         run: echo "PYRIGHT_VERSION=$(python -c 'import pyright; print(pyright.__pyright_version__)')" >> $GITHUB_ENV
@@ -80,7 +80,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.10"]
+        python-version: ["3.11"]
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index 298ac19..caf5831 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -13,11 +13,11 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
diff --git a/.github/workflows/python-test.yml b/.github/workflows/python-test.yml
index 95dc2dc..7694a92 100644
--- a/.github/workflows/python-test.yml
+++ b/.github/workflows/python-test.yml
@@ -16,17 +16,20 @@ jobs:
   build:
     runs-on: ubuntu-latest
 
+    strategy:
+      matrix:
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python 3.7
-      uses: actions/setup-python@v2
+    - uses: actions/checkout@v3
+    - name: Set up Python
+      uses: actions/setup-python@v4
       with:
-        python-version: 3.7
+        python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8==3.8.4 pytest tox
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        python -m pip install -r requirements.txt -e ".[dev]"
     - name: Test with pytest
       run: |
-        tox
+        # remove '.' in python-version and prepend with 'py' to get the correct tox env
+        tox -e py$(echo ${{ matrix.python-version }} | sed 's/\.//g')
diff --git a/.github/workflows/python-update-docs.yml b/.github/workflows/python-update-docs.yml
index 4932ae5..1d3c231 100644
--- a/.github/workflows/python-update-docs.yml
+++ b/.github/workflows/python-update-docs.yml
@@ -14,11 +14,11 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.10']
+        python-version: ['3.11']
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
@@ -28,7 +28,7 @@ jobs:
       - name: execute script
         run: |
           python ./docs/source/generate_style_list.py
-      - uses: EndBug/add-and-commit@v8
+      - uses: EndBug/add-and-commit@v9
         with:
           default_author: github_actions
           message: 'docs: update style list'
diff --git a/.github/workflows/test-docs.yml b/.github/workflows/test-docs.yml
index ede4b76..4eba722 100644
--- a/.github/workflows/test-docs.yml
+++ b/.github/workflows/test-docs.yml
@@ -14,11 +14,11 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7']
+        python-version: ['3.11']
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
diff --git a/pyproject.toml b/pyproject.toml
index e85aafc..1c5a9d5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ lint = { cmd = "pre-commit run --all-files", help = "Check all files for linting
 precommit = { cmd = "pre-commit install --install-hooks", help = "Install the precommit hook" }
 pyright = { cmd = "pyright", help = "Run pyright" }
 slotscheck = { cmd = "python -m slotscheck --verbose -m table2ascii", help = "Run slotscheck" }
-test = { cmd = "tox", help = "Run tests" }
+test = { cmd = "tox --skip-missing-interpreters", help = "Run tests" }
 
 
 [tool.slotscheck]
@@ -70,7 +70,7 @@ reportUnnecessaryTypeIgnoreComment = true
 
 
 [tool.mypy]
-python_version = "3.10"
+python_version = "3.11"
 namespace_packages = true
 
 
diff --git a/requirements.txt b/requirements.txt
index e1631f0..4037efa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-typing_extensions>=4.0.0,<5
\ No newline at end of file
+typing-extensions>=3.7.4; python_version<'3.8'
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 6cf7af7..1647b0d 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,6 @@
 import re
 
 from setuptools import setup
-from setuptools.command.test import test as Command
 
 
 def version():
@@ -76,7 +75,7 @@ def requirements():
     ],
     keywords="table ascii unicode formatter",
     python_requires=">=3.6",
-    install_requires=[requirements()],
+    install_requires=requirements(),
     extras_require=extras_require,
     setup_requires=[
         "flake8>=3.8,<4",
diff --git a/table2ascii/options.py b/table2ascii/options.py
index bb2ac6e..998edbd 100644
--- a/table2ascii/options.py
+++ b/table2ascii/options.py
@@ -1,5 +1,6 @@
+from __future__ import annotations
+
 from dataclasses import dataclass
-from typing import List, Optional
 
 from .alignment import Alignment
 from .table_style import TableStyle
@@ -11,7 +12,7 @@ class Options:
 
     first_col_heading: bool
     last_col_heading: bool
-    column_widths: Optional[List[Optional[int]]]
-    alignments: Optional[List[Alignment]]
+    column_widths: list[int | None] | None
+    alignments: list[Alignment] | None
     cell_padding: int
     style: TableStyle
diff --git a/table2ascii/table_to_ascii.py b/table2ascii/table_to_ascii.py
index 8835e61..f30cc97 100644
--- a/table2ascii/table_to_ascii.py
+++ b/table2ascii/table_to_ascii.py
@@ -1,5 +1,6 @@
+from __future__ import annotations
+
 from math import ceil, floor
-from typing import Callable, List, Optional, Union
 
 from .alignment import Alignment
 from .annotations import SupportsStr
@@ -13,9 +14,9 @@ class TableToAscii:
 
     def __init__(
         self,
-        header: Optional[List[SupportsStr]],
-        body: Optional[List[List[SupportsStr]]],
-        footer: Optional[List[SupportsStr]],
+        header: list[SupportsStr] | None,
+        body: list[list[SupportsStr]] | None,
+        footer: list[SupportsStr] | None,
         options: Options,
     ):
         """
@@ -92,7 +93,7 @@ def __count_columns(self) -> int:
             return len(self.__body[0])
         return 0
 
-    def __auto_column_widths(self) -> List[int]:
+    def __auto_column_widths(self) -> list[int]:
         """
         Get the minimum number of characters needed for the values in
         each column in the table with 1 space of padding on each side.
@@ -151,7 +152,7 @@ def __row_to_ascii(
         heading_col_sep: str,
         column_seperator: str,
         right_edge: str,
-        filler: Union[str, List],
+        filler: str | list[SupportsStr],
     ) -> str:
         """
         Assembles a line of text in the ascii table
@@ -235,7 +236,7 @@ def __bottom_edge_to_ascii(self) -> str:
             filler=self.__style.top_and_bottom_edge,
         )
 
-    def __heading_row_to_ascii(self, row: List) -> str:
+    def __heading_row_to_ascii(self, row: list[SupportsStr]) -> str:
         """
         Assembles the header or footer row line of the ascii table
 
@@ -265,7 +266,7 @@ def __heading_sep_to_ascii(self) -> str:
             filler=self.__style.heading_row_sep,
         )
 
-    def __body_to_ascii(self, body: List[List[SupportsStr]]) -> str:
+    def __body_to_ascii(self, body: list[list[SupportsStr]]) -> str:
         """
         Assembles the body of the ascii table
 
@@ -317,14 +318,14 @@ def to_ascii(self) -> str:
 
 
 def table2ascii(
-    header: Optional[List[SupportsStr]] = None,
-    body: Optional[List[List[SupportsStr]]] = None,
-    footer: Optional[List[SupportsStr]] = None,
+    header: list[SupportsStr] | None = None,
+    body: list[list[SupportsStr]] | None = None,
+    footer: list[SupportsStr] | None = None,
     *,
     first_col_heading: bool = False,
     last_col_heading: bool = False,
-    column_widths: Optional[List[Optional[int]]] = None,
-    alignments: Optional[List[Alignment]] = None,
+    column_widths: list[int | None] | None = None,
+    alignments: list[Alignment] | None = None,
     cell_padding: int = 1,
     style: TableStyle = PresetStyle.double_thin_compact,
 ) -> str:
diff --git a/tox.ini b/tox.ini
index 7b01ad7..d505b52 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,8 @@
 [tox]
-envlist = python3.9
+envlist = py37, py38, py39, py310, py311
 
 [testenv]
-deps = pytest
+deps =
+    pytest
+    -rrequirements.txt
 commands = pytest tests -s