diff --git a/pyproject.toml b/pyproject.toml
index 05f7df6..f76831a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,10 +13,18 @@ filterwarnings = [
     "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"
+    "ignore:Pickle, copy, and deepcopy support will be removed from itertools in Python 3.14.:DeprecationWarning",
+    # Until we stop supporting older numpy versions (<2.1)
+    "ignore:(?s).*`newshape` keyword argument is deprecated.*$:DeprecationWarning",
 ]
 qt_api = "pyqt6"
-addopts = ["--mpl", "--mpl-baseline-relative", "--strict-config", "--strict-markers", "-ra"]
+addopts = [
+    "--mpl",
+    "--mpl-baseline-relative",
+    "--strict-config",
+    "--strict-markers",
+    "-ra",
+]
 minversion = "7"
 testpaths = ["src/napari_matplotlib/tests"]
 log_cli_level = "INFO"
@@ -54,17 +62,15 @@ ignore = [
 convention = "numpy"
 
 [tool.mypy]
-python_version = "3.10"
+python_version = "3.12"
 # 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
+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/*",
-]
+module = ["napari_matplotlib/tests/*"]
 disallow_untyped_defs = false
diff --git a/setup.cfg b/setup.cfg
index 073478a..a3709e6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -28,7 +28,7 @@ project_urls =
 packages = find:
 install_requires =
     matplotlib
-    napari<0.5
+    napari>=0.5
     numpy>=1.23
     tinycss2
 python_requires = >=3.10
diff --git a/src/napari_matplotlib/base.py b/src/napari_matplotlib/base.py
index 720333e..ca69a54 100644
--- a/src/napari_matplotlib/base.py
+++ b/src/napari_matplotlib/base.py
@@ -42,7 +42,7 @@ def __init__(
         super().__init__(parent=parent)
         self.viewer = napari_viewer
         self.napari_theme_style_sheet = style_sheet_from_theme(
-            get_theme(napari_viewer.theme, as_dict=False)
+            get_theme(napari_viewer.theme)
         )
 
         # Sets figure.* style
@@ -84,7 +84,7 @@ def _on_napari_theme_changed(self, event: Event) -> None:
             Event that triggered the callback.
         """
         self.napari_theme_style_sheet = style_sheet_from_theme(
-            get_theme(event.value, as_dict=False)
+            get_theme(event.value)
         )
         self._replace_toolbar_icons()
 
@@ -97,7 +97,7 @@ def _napari_theme_has_light_bg(self) -> bool:
         bool
             True if theme's background colour has hsl lighter than 50%, False if darker.
         """
-        theme = napari.utils.theme.get_theme(self.viewer.theme, as_dict=False)
+        theme = napari.utils.theme.get_theme(self.viewer.theme)
         _, _, bg_lightness = theme.background.as_hsl_tuple()
         return bg_lightness > 0.5
 
diff --git a/src/napari_matplotlib/tests/scatter/test_scatter.py b/src/napari_matplotlib/tests/scatter/test_scatter.py
index a225863..0c60660 100644
--- a/src/napari_matplotlib/tests/scatter/test_scatter.py
+++ b/src/napari_matplotlib/tests/scatter/test_scatter.py
@@ -15,7 +15,9 @@ def test_scatter_2D(make_napari_viewer, astronaut_data):
     viewer.add_image(astronaut_data[0], **astronaut_data[1], name="astronaut")
 
     viewer.add_image(
-        astronaut_data[0] * -1, **astronaut_data[1], name="astronaut_reversed"
+        astronaut_data[0] * -1.0,
+        **astronaut_data[1],
+        name="astronaut_reversed",
     )
     # De-select existing selection
     viewer.layers.selection.clear()
@@ -36,7 +38,7 @@ def test_scatter_3D(make_napari_viewer, brain_data):
     viewer.add_image(brain_data[0], **brain_data[1], name="brain")
 
     viewer.add_image(
-        brain_data[0] * -1, **brain_data[1], name="brain_reversed"
+        brain_data[0] * -1.0, **brain_data[1], name="brain_reversed"
     )
     # De-select existing selection
     viewer.layers.selection.clear()
diff --git a/src/napari_matplotlib/tests/test_theme.py b/src/napari_matplotlib/tests/test_theme.py
index 2310f32..5fedc43 100644
--- a/src/napari_matplotlib/tests/test_theme.py
+++ b/src/napari_matplotlib/tests/test_theme.py
@@ -29,7 +29,7 @@ def _mock_up_theme() -> None:
     Based on:
     https://napari.org/stable/gallery/new_theme.html
     """
-    blue_theme = napari.utils.theme.get_theme("dark", False)
+    blue_theme = napari.utils.theme.get_theme("dark")
     blue_theme.label = "blue"
     blue_theme.background = "#4169e1"  # my favourite shade of blue
     napari.utils.theme.register_theme(