diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 5b721d9..39c1ab5 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -32,7 +32,7 @@ jobs:
           sudo apt install graphviz --yes
 
       - name: Build Docs
-        uses: aganders3/headless-gui@v1
+        uses: aganders3/headless-gui@v2
         with:
           run: make html
           working-directory: ./docs
diff --git a/.github/workflows/napari_hub_preview.yml b/.github/workflows/napari_hub_preview.yml
deleted file mode 100644
index c204ac4..0000000
--- a/.github/workflows/napari_hub_preview.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-name: napari hub Preview Page # we use this name to find your preview page artifact, so don't change it!
-# For more info on this action, see https://github.com/chanzuckerberg/napari-hub-preview-action/blob/main/action.yml
-
-on:
-  pull_request:
-    types: [ labeled ]
-
-jobs:
-  preview-page:
-    if: ${{ github.event.label.name == 'napari hub preview' }}
-    name: Preview Page Deploy
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout repo
-        uses: actions/checkout@v3
-
-      - name: napari hub Preview Page Builder
-        uses: chanzuckerberg/napari-hub-preview-action@v0.1
-        with:
-          hub-ref: main
diff --git a/.github/workflows/test_and_deploy.yml b/.github/workflows/test_and_deploy.yml
index 8665e1d..2a8b731 100644
--- a/.github/workflows/test_and_deploy.yml
+++ b/.github/workflows/test_and_deploy.yml
@@ -12,6 +12,10 @@ on:
   workflow_dispatch:
   merge_group:
 
+concurrency:
+    group: ${{ github.workflow }}-${{ github.ref }}
+    cancel-in-progress: true
+
 jobs:
   test:
     name: ${{ matrix.platform }} py${{ matrix.python-version }}
@@ -20,7 +24,7 @@ jobs:
       fail-fast: false
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.10', '3.11', '3.12']
 
     steps:
       - uses: actions/checkout@v3
@@ -58,13 +62,15 @@ jobs:
         if: ${{ always() }}
 
       - name: Coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         # Don't run coverage on merge queue CI to avoid duplicating reports
         # to codecov. See https://github.com/matplotlib/napari-matplotlib/issues/155
         if: github.event_name != 'merge_group'
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
-          fail_ci_if_error: true
+          fail_ci_if_error: false
+
+
 
   deploy:
     # this will run when you have tagged a commit, starting with "v*"
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 8df635a..ebae2d3 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,13 +1,13 @@
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.5.0
+    rev: v4.6.0
     hooks:
       - id: check-docstring-first
       - id: end-of-file-fixer
       - id: trailing-whitespace
 
-  - repo: https://github.com/psf/black
-    rev: 23.12.1
+  - repo: https://github.com/psf/black-pre-commit-mirror
+    rev: 24.4.2
     hooks:
       - id: black
 
@@ -17,14 +17,14 @@ repos:
       - id: napari-plugin-checks
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.8.0
+    rev: v1.10.1
     hooks:
      - id: mypy
        additional_dependencies: [numpy, matplotlib]
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: 'v0.1.11'
+    rev: 'v0.5.1'
     hooks:
       - id: ruff
 
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 255982a..697e483 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,5 +1,18 @@
 Changelog
 =========
+
+2.0.2
+-----
+Dependencies
+~~~~~~~~~~~~
+napari-matplotlib now adheres to `SPEC 0 <https://scientific-python.org/specs/spec-0000/>`_, and has:
+
+- Dropped support for Python 3.9
+- Added support for Python 3.12
+- Added a minimum required numpy verison of 1.23
+- Pinned the maximum napari version to ``< 0.5``.
+  Version 3.0 of ``napari-matplotlib`` will introduce support for ``napari`` version 0.5.
+
 2.0.1
 -----
 Bug fixes
diff --git a/docs/conf.py b/docs/conf.py
index 2517a59..f153383 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -13,7 +13,7 @@
 # import os
 # import sys
 # sys.path.insert(0, os.path.abspath('.'))
-import qtgallery
+from sphinx_gallery import scrapers
 
 # -- Project information -----------------------------------------------------
 
@@ -35,18 +35,58 @@
     "sphinx.ext.intersphinx",
 ]
 
+
+def reset_napari(gallery_conf, fname):  # type: ignore[no-untyped-def]
+    from napari.settings import get_settings
+    from qtpy.QtWidgets import QApplication
+
+    settings = get_settings()
+    settings.appearance.theme = "dark"
+
+    # Disabling `QApplication.exec_` means example scripts can call `exec_`
+    # (scripts work when run normally) without blocking example execution by
+    # sphinx-gallery. (from qtgallery)
+    QApplication.exec_ = lambda _: None
+
+
+def napari_scraper(block, block_vars, gallery_conf):  # type: ignore[no-untyped-def]
+    """Basic napari window scraper.
+
+    Looks for any QtMainWindow instances and takes a screenshot of them.
+
+    `app.processEvents()` allows Qt events to propagateo and prevents hanging.
+    """
+    import napari
+
+    imgpath_iter = block_vars["image_path_iterator"]
+
+    if app := napari.qt.get_app():
+        app.processEvents()
+    else:
+        return ""
+
+    img_paths = []
+    for win, img_path in zip(
+        reversed(napari._qt.qt_main_window._QtMainWindow._instances),
+        imgpath_iter,
+        strict=False,
+    ):
+        img_paths.append(img_path)
+        win._window.screenshot(img_path, canvas_only=False)
+
+    napari.Viewer.close_all()
+    app.processEvents()
+
+    return scrapers.figure_rst(img_paths, gallery_conf["src_dir"])
+
+
 sphinx_gallery_conf = {
     "filename_pattern": ".",
-    "image_scrapers": (qtgallery.qtscraper,),
-    "reset_modules": (qtgallery.reset_qapp,),
+    "image_scrapers": (napari_scraper,),
+    "reset_modules": (reset_napari,),
 }
+suppress_warnings = ["config.cache"]
 
-qtgallery_conf = {
-    "xvfb_size": (640, 480),
-    "xvfb_color_depth": 24,
-    "xfvb_use_xauth": False,
-    "xfvb_extra_args": [],
-}
 
 numpydoc_show_class_members = False
 automodapi_inheritance_diagram = True
diff --git a/examples/histogram.py b/examples/histogram.py
index ccda491..b9ceb37 100644
--- a/examples/histogram.py
+++ b/examples/histogram.py
@@ -2,6 +2,7 @@
 Histograms
 ==========
 """
+
 import napari
 
 viewer = napari.Viewer()
diff --git a/examples/scatter.py b/examples/scatter.py
index cd81240..00e01ec 100644
--- a/examples/scatter.py
+++ b/examples/scatter.py
@@ -2,6 +2,7 @@
 Scatter plots
 =============
 """
+
 import napari
 
 viewer = napari.Viewer()
diff --git a/examples/slice.py b/examples/slice.py
index 3e43443..242a16c 100644
--- a/examples/slice.py
+++ b/examples/slice.py
@@ -2,6 +2,7 @@
 1D slices
 =========
 """
+
 import napari
 
 viewer = napari.Viewer()
diff --git a/pyproject.toml b/pyproject.toml
index ba9f9e6..05f7df6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools", "wheel", "setuptools_scm"]
+requires = ["setuptools", "setuptools_scm"]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools_scm]
@@ -12,9 +12,15 @@ filterwarnings = [
     # Coming from vispy
     "ignore:distutils Version classes are deprecated:DeprecationWarning",
     "ignore:`np.bool8` is a deprecated alias for `np.bool_`:DeprecationWarning",
+    # Coming from pydantic via napari
+    "ignore:Pickle, copy, and deepcopy support will be removed from itertools in Python 3.14.:DeprecationWarning"
 ]
 qt_api = "pyqt6"
-addopts = "--mpl --mpl-baseline-relative"
+addopts = ["--mpl", "--mpl-baseline-relative", "--strict-config", "--strict-markers", "-ra"]
+minversion = "7"
+testpaths = ["src/napari_matplotlib/tests"]
+log_cli_level = "INFO"
+xfail_strict = true
 
 [tool.black]
 line-length = 79
@@ -24,8 +30,11 @@ profile = "black"
 line_length = 79
 
 [tool.ruff]
-target-version = "py39"
-select = ["I", "UP", "F", "E", "W", "D"]
+target-version = "py310"
+fix = true
+
+[tool.ruff.lint]
+select = ["B", "I", "UP", "F", "E", "W", "D"]
 ignore = [
     "D100", # Missing docstring in public module
     "D104", # Missing docstring in public package
@@ -35,24 +44,25 @@ ignore = [
     "D401", # First line of docstring should be in imperative mood
 
 ]
-fix = true
 
-[tool.ruff.per-file-ignores]
+[tool.ruff.lint.per-file-ignores]
 "docs/*" = ["D"]
 "examples/*" = ["D"]
 "src/napari_matplotlib/tests/*" = ["D"]
 
-[tool.ruff.pydocstyle]
+[tool.ruff.lint.pydocstyle]
 convention = "numpy"
 
 [tool.mypy]
-python_version = "3.9"
+python_version = "3.10"
 # Block below are checks that form part of mypy 'strict' mode
 strict = true
 disallow_subclassing_any = false # TODO: fix
 warn_return_any = false # TODO: fix
 ignore_missing_imports = true
 
+enable_error_code = ["ignore-without-code", "redundant-expr", "truthy-bool"]
+
 [[tool.mypy.overrides]]
 module = [
     "napari_matplotlib/tests/*",
diff --git a/setup.cfg b/setup.cfg
index 41e4e34..073478a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -28,10 +28,10 @@ project_urls =
 packages = find:
 install_requires =
     matplotlib
-    napari
-    numpy
+    napari<0.5
+    numpy>=1.23
     tinycss2
-python_requires = >=3.9
+python_requires = >=3.10
 include_package_data = True
 package_dir =
     =src
@@ -47,11 +47,10 @@ napari.manifest =
 
 [options.extras_require]
 docs =
-    napari[all]==0.4.19rc3
+    napari[all]
     numpydoc
     pydantic<2
     pydata-sphinx-theme
-    qtgallery
     sphinx
     sphinx-automodapi
     sphinx-gallery
diff --git a/src/napari_matplotlib/base.py b/src/napari_matplotlib/base.py
index fb9e485..c455335 100644
--- a/src/napari_matplotlib/base.py
+++ b/src/napari_matplotlib/base.py
@@ -1,6 +1,5 @@
 import os
 from pathlib import Path
-from typing import Optional
 
 import matplotlib.style as mplstyle
 import napari
@@ -38,7 +37,7 @@ class BaseNapariMPLWidget(QWidget):
     def __init__(
         self,
         napari_viewer: napari.Viewer,
-        parent: Optional[QWidget] = None,
+        parent: QWidget | None = None,
     ):
         super().__init__(parent=parent)
         self.viewer = napari_viewer
@@ -173,7 +172,7 @@ class NapariMPLWidget(BaseNapariMPLWidget):
     def __init__(
         self,
         napari_viewer: napari.viewer.Viewer,
-        parent: Optional[QWidget] = None,
+        parent: QWidget | None = None,
     ):
         super().__init__(napari_viewer=napari_viewer, parent=parent)
         self._setup_callbacks()
@@ -282,7 +281,7 @@ class SingleAxesWidget(NapariMPLWidget):
     def __init__(
         self,
         napari_viewer: napari.viewer.Viewer,
-        parent: Optional[QWidget] = None,
+        parent: QWidget | None = None,
     ):
         super().__init__(napari_viewer=napari_viewer, parent=parent)
         self.add_single_axes()
diff --git a/src/napari_matplotlib/histogram.py b/src/napari_matplotlib/histogram.py
index 4076528..adbbae6 100644
--- a/src/napari_matplotlib/histogram.py
+++ b/src/napari_matplotlib/histogram.py
@@ -1,4 +1,4 @@
-from typing import Any, Optional, cast
+from typing import Any, cast
 
 import napari
 import numpy as np
@@ -44,7 +44,7 @@ class HistogramWidget(SingleAxesWidget):
     def __init__(
         self,
         napari_viewer: napari.viewer.Viewer,
-        parent: Optional[QWidget] = None,
+        parent: QWidget | None = None,
     ):
         super().__init__(napari_viewer, parent=parent)
         self._update_layers(None)
@@ -60,7 +60,7 @@ def on_update_layers(self) -> None:
 
     def _update_contrast_lims(self) -> None:
         for lim, line in zip(
-            self.layers[0].contrast_limits, self._contrast_lines
+            self.layers[0].contrast_limits, self._contrast_lines, strict=False
         ):
             line.set_xdata(lim)
 
@@ -121,7 +121,7 @@ class FeaturesHistogramWidget(SingleAxesWidget):
     def __init__(
         self,
         napari_viewer: napari.viewer.Viewer,
-        parent: Optional[QWidget] = None,
+        parent: QWidget | None = None,
     ):
         super().__init__(napari_viewer, parent=parent)
 
@@ -137,12 +137,12 @@ def __init__(
         self._update_layers(None)
 
     @property
-    def x_axis_key(self) -> Optional[str]:
+    def x_axis_key(self) -> str | None:
         """Key to access x axis data from the FeaturesTable"""
         return self._x_axis_key
 
     @x_axis_key.setter
-    def x_axis_key(self, key: Optional[str]) -> None:
+    def x_axis_key(self, key: str | None) -> None:
         self._x_axis_key = key
         self._draw()
 
@@ -166,7 +166,7 @@ def _get_valid_axis_keys(self) -> list[str]:
         else:
             return self.layers[0].features.keys()
 
-    def _get_data(self) -> tuple[Optional[npt.NDArray[Any]], str]:
+    def _get_data(self) -> tuple[npt.NDArray[Any] | None, str]:
         """Get the plot data.
 
         Returns
diff --git a/src/napari_matplotlib/scatter.py b/src/napari_matplotlib/scatter.py
index 67d6896..98ebe92 100644
--- a/src/napari_matplotlib/scatter.py
+++ b/src/napari_matplotlib/scatter.py
@@ -1,4 +1,4 @@
-from typing import Any, Optional, Union
+from typing import Any
 
 import napari
 import numpy.typing as npt
@@ -100,7 +100,7 @@ class FeaturesScatterWidget(ScatterBaseWidget):
     def __init__(
         self,
         napari_viewer: napari.viewer.Viewer,
-        parent: Optional[QWidget] = None,
+        parent: QWidget | None = None,
     ):
         super().__init__(napari_viewer, parent=parent)
 
@@ -118,7 +118,7 @@ def __init__(
         self._update_layers(None)
 
     @property
-    def x_axis_key(self) -> Union[str, None]:
+    def x_axis_key(self) -> str | None:
         """
         Key for the x-axis data.
         """
@@ -133,7 +133,7 @@ def x_axis_key(self, key: str) -> None:
         self._draw()
 
     @property
-    def y_axis_key(self) -> Union[str, None]:
+    def y_axis_key(self) -> str | None:
         """
         Key for the y-axis data.
         """
diff --git a/src/napari_matplotlib/slice.py b/src/napari_matplotlib/slice.py
index 9459fa9..1924bf2 100644
--- a/src/napari_matplotlib/slice.py
+++ b/src/napari_matplotlib/slice.py
@@ -1,4 +1,4 @@
-from typing import Any, Optional
+from typing import Any
 
 import matplotlib.ticker as mticker
 import napari
@@ -30,7 +30,7 @@ class SliceWidget(SingleAxesWidget):
     def __init__(
         self,
         napari_viewer: napari.viewer.Viewer,
-        parent: Optional[QWidget] = None,
+        parent: QWidget | None = None,
     ):
         # Setup figure/axes
         super().__init__(napari_viewer, parent=parent)
diff --git a/src/napari_matplotlib/tests/test_util.py b/src/napari_matplotlib/tests/test_util.py
index a8792d4..e966cc2 100644
--- a/src/napari_matplotlib/tests/test_util.py
+++ b/src/napari_matplotlib/tests/test_util.py
@@ -26,7 +26,7 @@ def test_interval():
     assert 10 not in interval
 
     with pytest.raises(ValueError, match="must be an integer"):
-        "string" in interval  # type: ignore
+        assert "string" in interval  # type: ignore[operator]
 
     with pytest.raises(ValueError, match="must be <= upper_bound"):
         Interval(5, 3)
@@ -69,7 +69,10 @@ def test_fallback_if_missing_dimensions(mocker):
     test_css = " Flobble { background-color: rgb(0, 97, 163); } "
     mocker.patch("napari.qt.get_current_stylesheet").return_value = test_css
     with pytest.warns(RuntimeWarning, match="Unable to find DimensionToken"):
-        assert from_napari_css_get_size_of("Flobble", (1, 2)) == QSize(1, 2)
+        with pytest.warns(RuntimeWarning, match="Unable to find Flobble"):
+            assert from_napari_css_get_size_of("Flobble", (1, 2)) == QSize(
+                1, 2
+            )
 
 
 def test_fallback_if_prelude_not_in_css():
diff --git a/src/napari_matplotlib/util.py b/src/napari_matplotlib/util.py
index ed99425..8d4150c 100644
--- a/src/napari_matplotlib/util.py
+++ b/src/napari_matplotlib/util.py
@@ -1,4 +1,3 @@
-from typing import Optional, Union
 from warnings import warn
 
 import napari.qt
@@ -12,7 +11,7 @@ class Interval:
     An integer interval.
     """
 
-    def __init__(self, lower_bound: Optional[int], upper_bound: Optional[int]):
+    def __init__(self, lower_bound: int | None, upper_bound: int | None):
         """
         Parameters
         ----------
@@ -48,7 +47,7 @@ def __contains__(self, val: int) -> bool:
         return True
 
     @property
-    def _helper_text(self) -> Optional[str]:
+    def _helper_text(self) -> str | None:
         """
         Helper text for widgets.
         """
@@ -86,9 +85,7 @@ def _has_id(nodes: list[tinycss2.ast.Node], id_name: str) -> bool:
     )
 
 
-def _get_dimension(
-    nodes: list[tinycss2.ast.Node], id_name: str
-) -> Union[int, None]:
+def _get_dimension(nodes: list[tinycss2.ast.Node], id_name: str) -> int | None:
     """
     Get the value of the DimensionToken for the IdentToken `id_name`.
 
@@ -97,14 +94,18 @@ def _get_dimension(
         None if no IdentToken is found.
     """
     cleaned_nodes = [node for node in nodes if node.type != "whitespace"]
-    for name, _, value, _ in zip(*(iter(cleaned_nodes),) * 4):
+    for name, _, value, _ in zip(*(iter(cleaned_nodes),) * 4, strict=False):
         if (
             name.type == "ident"
             and value.type == "dimension"
             and name.value == id_name
         ):
             return value.int_value
-    warn(f"Unable to find DimensionToken for {id_name}", RuntimeWarning)
+    warn(
+        f"Unable to find DimensionToken for {id_name}",
+        RuntimeWarning,
+        stacklevel=1,
+    )
     return None
 
 
@@ -137,6 +138,7 @@ def from_napari_css_get_size_of(
         f"Unable to find {qt_element_name} or unable to find its size in "
         f"the current Napari stylesheet, falling back to {fallback}",
         RuntimeWarning,
+        stacklevel=1,
     )
     return QSize(*fallback)
 
diff --git a/tox.ini b/tox.ini
index 4ec0c70..f4aed6a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,12 +1,12 @@
 [tox]
-envlist = py{39,310,311}
+envlist = py{310,311,312}
 isolated_build = true
 
 [gh-actions]
 python =
-    3.9: py39
     3.10: py310
     3.11: py311
+    3.12: py312
 
 [testenv]
 extras = testing