diff --git a/.github/workflows/test_and_deploy.yml b/.github/workflows/test_and_deploy.yml
index a7a4307..5be982a 100644
--- a/.github/workflows/test_and_deploy.yml
+++ b/.github/workflows/test_and_deploy.yml
@@ -1,5 +1,9 @@
 name: Test
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 on:
   push:
     branches:
@@ -43,14 +47,6 @@ jobs:
             platform: windows-latest
             backend: pyside6
 
-          # python 3.7
-          - python-version: 3.7
-            platform: macos-latest
-            backend: pyqt5
-          - python-version: 3.7
-            platform: windows-latest
-            backend: pyside2
-
           # legacy Qt
           - python-version: 3.8
             platform: ubuntu-latest
@@ -63,11 +59,6 @@ jobs:
             backend: "pyqt5==5.14.*"
 
     steps:
-      - name: Cancel Previous Runs
-        uses: styfle/cancel-workflow-action@0.11.0
-        with:
-          access_token: ${{ github.token }}
-
       - uses: actions/checkout@v3
 
       - name: Set up Python ${{ matrix.python-version }}
@@ -167,6 +158,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 3782896..bd805ff 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -26,7 +26,7 @@ pytest
 
 All widgets must be well-tested, and should work on:
 
-- Python 3.7 and above
+- Python 3.8 and above
 - PyQt5 (5.11 and above) & PyQt6
 - PySide2 (5.11 and above) & PySide6
 - macOS, Windows, & Linux
diff --git a/README.md b/README.md
index 4d08442..7426b94 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ that are not provided in the native QtWidgets module.
 Components are tested on:
 
 - macOS, Windows, & Linux
-- Python 3.7 and above
+- Python 3.8 and above
 - PyQt5 (5.11 and above) & PyQt6
 - PySide2 (5.11 and above) & PySide6
 
diff --git a/docs/index.md b/docs/index.md
index 3d9b860..c04534f 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -10,7 +10,7 @@ QtWidgets module.
 Components are tested on:
 
 - macOS, Windows, & Linux
-- Python 3.7 and above
+- Python 3.8 and above
 - PyQt5 (5.11 and above) & PyQt6
 - PySide2 (5.11 and above) & PySide6
 
diff --git a/pyproject.toml b/pyproject.toml
index b67e830..b45abf1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,9 +8,9 @@ build-backend = "hatchling.build"
 name = "superqt"
 description = "Missing widgets and components for PyQt/PySide"
 readme = "README.md"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 license = { text = "BSD 3-Clause License" }
-authors = [{ email = "talley.lambert@gmail.com" }, { name = "Talley Lambert" }]
+authors = [{ email = "talley.lambert@gmail.com", name = "Talley Lambert" }]
 keywords = [
     "qt",
     "pyqt",
@@ -28,7 +28,6 @@ classifiers = [
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
@@ -93,19 +92,21 @@ src_paths = ["src/superqt", "tests"]
 # https://github.com/charliermarsh/ruff
 [tool.ruff]
 line-length = 88
-target-version = "py37"
+target-version = "py38"
 src = ["src", "tests"]
 select = [
     "E",    # style errors
     "F",    # flakes
+    "W",    # flakes
     "D",    # pydocstyle
     "I",    # isort
     "UP",   # pyupgrade
     "S",    # bandit
-    "C",    # flake8-comprehensions
+    "C4",   # flake8-comprehensions
     "B",    # flake8-bugbear
     "A001", # flake8-builtins
     "RUF",  # ruff-specific rules
+    "TID",  # tidy imports
 ]
 ignore = [
     "D100", # Missing docstring in public module
@@ -118,7 +119,6 @@ ignore = [
     "D401", # First line should be in imperative mood
     "D413", # Missing blank line after last section
     "D416", # Section name should end with a colon
-    "C901", # Function is too complex
 ]
 
 
@@ -180,5 +180,4 @@ ignore = [
     "CONTRIBUTING.md",
     "codecov.yml",
     ".ruff_cache/**/*",
-    "setup.py",
 ]
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 57275ee..0000000
--- a/setup.py
+++ /dev/null
@@ -1,29 +0,0 @@
-import sys
-
-sys.stderr.write(
-    """
-===============================
-Unsupported installation method
-===============================
-superqt does not support installation with `python setup.py install`.
-Please use `python -m pip install .` instead.
-"""
-)
-sys.exit(1)
-
-
-# The below code will never execute, however GitHub is particularly
-# picky about where it finds Python packaging metadata.
-# See: https://github.com/github/feedback/discussions/6456
-#
-# To be removed once GitHub catches up.
-
-setup(  # noqa: F821
-    name="superqt",
-    install_requires=[
-        "packaging",
-        "pygments>=2.4.0",
-        "qtpy>=1.1.0",
-        "typing-extensions",
-    ],
-)
diff --git a/src/superqt/__init__.py b/src/superqt/__init__.py
index c61bc2c..be9e088 100644
--- a/src/superqt/__init__.py
+++ b/src/superqt/__init__.py
@@ -1,9 +1,10 @@
 """superqt is a collection of Qt components for python."""
+from importlib.metadata import PackageNotFoundError, version
 from typing import TYPE_CHECKING, Any
 
 try:
-    from ._version import version as __version__
-except ImportError:
+    __version__ = version("superqt")
+except PackageNotFoundError:
     __version__ = "unknown"
 
 if TYPE_CHECKING:
diff --git a/tests/test_sliders/test_labeled_slider.py b/tests/test_sliders/test_labeled_slider.py
index 25525e0..feaac1c 100644
--- a/tests/test_sliders/test_labeled_slider.py
+++ b/tests/test_sliders/test_labeled_slider.py
@@ -1,4 +1,3 @@
-import sys
 from typing import Any, Iterable
 from unittest.mock import Mock
 
@@ -26,8 +25,7 @@ def test_slider_connect_works(qtbot):
 
 def _assert_types(args: Iterable[Any], type_: type):
     # sourcery skip: comprehension-to-generator
-    if sys.version_info >= (3, 8):
-        assert all(isinstance(v, type_) for v in args), "invalid type"
+    assert all(isinstance(v, type_) for v in args), "invalid type"
 
 
 @pytest.mark.parametrize("cls", [QLabeledDoubleSlider, QLabeledSlider])
diff --git a/tests/test_sliders/test_range_slider.py b/tests/test_sliders/test_range_slider.py
index 87b5675..29bc08d 100644
--- a/tests/test_sliders/test_range_slider.py
+++ b/tests/test_sliders/test_range_slider.py
@@ -1,5 +1,4 @@
 import math
-import sys
 from itertools import product
 from typing import Any, Iterable
 from unittest.mock import Mock
@@ -218,8 +217,7 @@ def test_wheel(cls, orientation, qtbot):
 
 def _assert_types(args: Iterable[Any], type_: type):
     # sourcery skip: comprehension-to-generator
-    if sys.version_info >= (3, 8):
-        assert all(isinstance(v, type_) for v in args), "invalid type"
+    assert all(isinstance(v, type_) for v in args), "invalid type"
 
 
 @pytest.mark.parametrize("cls, orientation", ALL_SLIDER_COMBOS)