diff --git a/.github/workflows/tox.yaml b/.github/workflows/tox.yaml
index 2cf3db71..3a9c211b 100644
--- a/.github/workflows/tox.yaml
+++ b/.github/workflows/tox.yaml
@@ -31,19 +31,19 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - ubuntu-20.04
+          - ubuntu-22.04
         py:
-          - "3.8"
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12"
     steps:
       - name: Set up Python ${{ matrix.py }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.py }}
       - name: Checkout scos-actions
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Install tox-gh
         run: python -m pip install tox-gh
       - name: Set up test suite
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 0b4ae5b3..52848726 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,8 +1,6 @@
-default_language_version:
-  python: python3.10
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.6.0
+    rev: v5.0.0
     hooks:
       - id: check-ast
         types: [file, python]
@@ -18,10 +16,10 @@ repos:
       - id: end-of-file-fixer
       - id: trailing-whitespace
   - repo: https://github.com/asottile/pyupgrade
-    rev: v3.16.0
+    rev: v3.19.0
     hooks:
       - id: pyupgrade
-        args: ["--py38-plus"]
+        args: ["--py39-plus"]
   - repo: https://github.com/pycqa/isort
     rev: 5.13.2
     hooks:
@@ -30,12 +28,12 @@ repos:
         types: [file, python]
         args: ["--profile", "black", "--filter-files", "--gitignore"]
   - repo: https://github.com/psf/black
-    rev: 24.4.2
+    rev: 24.10.0
     hooks:
       - id: black
         types: [file, python]
   - repo: https://github.com/igorshubovych/markdownlint-cli
-    rev: v0.41.0
+    rev: v0.42.0
     hooks:
       - id: markdownlint
         types: [file, markdown]
diff --git a/README.md b/README.md
index 37b521c1..64fd2265 100644
--- a/README.md
+++ b/README.md
@@ -102,7 +102,7 @@ if the new functionality can be supported by most signal analyzers.
 ### Requirements and Configuration
 
 Set up a development environment using a tool like [Conda](https://docs.conda.io/en/latest/)
-or [venv](https://docs.python.org/3/library/venv.html#module-venv), with `python>=3.8`. Then,
+or [venv](https://docs.python.org/3/library/venv.html#module-venv), with `python>=3.9`. Then,
 from the cloned directory, install the development dependencies by running:
 
 ```bash
diff --git a/pyproject.toml b/pyproject.toml
index 61ee7e34..6e69ef93 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ name = "scos-actions"
 dynamic = ["version"]
 description = "The base plugin providing common actions and interfaces for SCOS Sensor plugins"
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = { file = "LICENSE.md" }
 
 authors = [
@@ -35,32 +35,32 @@ classifiers = [
     "Environment :: Plugins",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
 ]
 
 dependencies = [
     "environs>=9.5.0",
-    "django>=4.2,<5.0",
+    "django>=4.2.8,<5.0",  # As of 4.2.8, Python 3.13 is not supported.
     "its_preselector @ git+https://github.com/NTIA/Preselector@3.1.0",
     "msgspec>=0.16.0,<1.0.0",
     "numexpr>=2.8.3",
-    "numpy>=1.22.0",
+    "numpy>=1.25.0",
     "psutil>=5.9.4",
     "python-dateutil>=2.0",
     "ray>=2.10.0",
     "ruamel.yaml>=0.15",
-    "scipy>=1.8.0",
+    "scipy>=1.11.4",
     "sigmf @ git+https://github.com/NTIA/SigMF@multi-recording-archive",
 ]
 
 [project.optional-dependencies]
 test = [
-    "pytest>=7.3.1,<8.0",
-    "pytest-cov>=4.0.0,<5.0",
-    "tox>=4.5.1,<5.0",
+    "pytest>=8.0,<9.0",
+    "pytest-cov>=6.0,<7.0",
+    "tox>=4.5.1,<5.0",  # Keep in sync with min_version in tox.ini
 ]
 dev = [
     "hatchling>=1.14.1,<2.0",
diff --git a/scos_actions/actions/acquire_sea_data_product.py b/scos_actions/actions/acquire_sea_data_product.py
index 15fb5715..5e72550d 100644
--- a/scos_actions/actions/acquire_sea_data_product.py
+++ b/scos_actions/actions/acquire_sea_data_product.py
@@ -26,7 +26,6 @@
 import sys
 from enum import EnumMeta
 from time import perf_counter
-from typing import Tuple
 
 import numpy as np
 import psutil
@@ -261,7 +260,7 @@ def __init__(
         self.detector = detector
         self.impedance_ohms = impedance_ohms
 
-    def run(self, iq: ray.ObjectRef) -> Tuple[np.ndarray, np.ndarray]:
+    def run(self, iq: ray.ObjectRef) -> tuple[np.ndarray, np.ndarray]:
         """
         Compute power versus time results from IQ samples.
 
@@ -399,7 +398,7 @@ class IQProcessor:
     The ``run`` method can be called to filter and process IQ samples.
     Filtering happens before the remote workers are called, which run
     concurrently. The ``run`` method returns Ray object references
-    immediately, which can be later used to retrieve the procesed results.
+    immediately, which can be later used to retrieve the processed results.
     """
 
     def __init__(self, params: dict, iir_sos: np.ndarray):
diff --git a/scos_actions/calibration/interfaces/calibration.py b/scos_actions/calibration/interfaces/calibration.py
index f3ea522c..917b7d25 100644
--- a/scos_actions/calibration/interfaces/calibration.py
+++ b/scos_actions/calibration/interfaces/calibration.py
@@ -3,7 +3,7 @@
 import logging
 from abc import abstractmethod
 from pathlib import Path
-from typing import List, get_origin
+from typing import get_origin
 
 from scos_actions.calibration.utils import (
     CalibrationParametersMissingException,
@@ -28,7 +28,7 @@ class Calibration:
     updates (if allowed) will be saved.
     """
 
-    calibration_parameters: List[str]
+    calibration_parameters: list[str]
     calibration_data: dict
     calibration_reference: str
     file_path: Path
@@ -43,7 +43,7 @@ def __post_init__(self):
     def _validate_fields(self) -> None:
         """Loosely check that the input types are as expected."""
         for f_name, f_def in self.__dataclass_fields__.items():
-            # Note that nested types are not checked: i.e., "List[str]"
+            # Note that nested types are not checked: i.e., "list[str]"
             # will surely be a list, but may not be filled with strings.
             f_type = get_origin(f_def.type) or f_def.type
             actual_value = getattr(self, f_name)
diff --git a/scos_actions/calibration/tests/test_calibration.py b/scos_actions/calibration/tests/test_calibration.py
index 9c74d9a1..d445c9f8 100644
--- a/scos_actions/calibration/tests/test_calibration.py
+++ b/scos_actions/calibration/tests/test_calibration.py
@@ -3,7 +3,6 @@
 import dataclasses
 import json
 from pathlib import Path
-from typing import List
 
 import pytest
 
@@ -57,7 +56,7 @@ def test_calibration_dataclass_fields(self):
         fields = {f.name: f.type for f in dataclasses.fields(Calibration)}
         # Note: does not check field order
         assert fields == {
-            "calibration_parameters": List[str],
+            "calibration_parameters": list[str],
             "calibration_reference": str,
             "calibration_data": dict,
             "file_path": Path,
diff --git a/scos_actions/hardware/sensor.py b/scos_actions/hardware/sensor.py
index c9eaa2a8..fad49e2c 100644
--- a/scos_actions/hardware/sensor.py
+++ b/scos_actions/hardware/sensor.py
@@ -2,7 +2,7 @@
 import hashlib
 import json
 import logging
-from typing import Any, Dict, List, Optional
+from typing import Any, Optional
 
 import numpy as np
 from its_preselector.preselector import Preselector
@@ -38,7 +38,7 @@ def __init__(
         capabilities: dict,
         gps: Optional[GPSInterface] = None,
         preselector: Optional[Preselector] = None,
-        switches: Optional[Dict[str, WebRelay]] = {},
+        switches: Optional[dict[str, WebRelay]] = {},
         location: Optional[dict] = None,
         sensor_cal: Optional[SensorCalibration] = None,
         differential_cal: Optional[DifferentialCalibration] = None,
@@ -93,7 +93,7 @@ def preselector(self, preselector: Preselector):
         self._preselector = preselector
 
     @property
-    def switches(self) -> Dict[str, WebRelay]:
+    def switches(self) -> dict[str, WebRelay]:
         """
         Dictionary of WebRelays, indexed by name. WebRelays may enable/disable other
         components within the sensor and/or provide a variety of sensors.
@@ -101,7 +101,7 @@ def switches(self) -> Dict[str, WebRelay]:
         return self._switches
 
     @switches.setter
-    def switches(self, switches: Dict[str, WebRelay]):
+    def switches(self, switches: dict[str, WebRelay]):
         self._switches = switches
 
     @property
@@ -213,12 +213,12 @@ def last_calibration_time(self) -> str:
         )
 
     @property
-    def sensor_calibration_data(self) -> Dict[str, Any]:
+    def sensor_calibration_data(self) -> dict[str, Any]:
         """Sensor calibration data for the current sensor settings."""
         return self._sensor_calibration_data
 
     @property
-    def differential_calibration_data(self) -> Dict[str, float]:
+    def differential_calibration_data(self) -> dict[str, float]:
         """Differential calibration data for the current sensor settings."""
         return self._differential_calibration_data
 
diff --git a/scos_actions/hardware/sigan_iface.py b/scos_actions/hardware/sigan_iface.py
index 23497414..0a0edea9 100644
--- a/scos_actions/hardware/sigan_iface.py
+++ b/scos_actions/hardware/sigan_iface.py
@@ -1,7 +1,7 @@
 import logging
 import time
 from abc import ABC, abstractmethod
-from typing import Dict, Optional
+from typing import Optional
 
 from its_preselector.web_relay import WebRelay
 
@@ -13,7 +13,7 @@
 class SignalAnalyzerInterface(ABC):
     def __init__(
         self,
-        switches: Optional[Dict[str, WebRelay]] = None,
+        switches: Optional[dict[str, WebRelay]] = None,
     ):
         self._model = "Unknown"
         self._api_version = "Unknown"
diff --git a/scos_actions/hardware/utils.py b/scos_actions/hardware/utils.py
index f01250f8..1eb3a8ff 100644
--- a/scos_actions/hardware/utils.py
+++ b/scos_actions/hardware/utils.py
@@ -1,6 +1,6 @@
 import logging
 import subprocess
-from typing import Dict, Tuple, Union
+from typing import Union
 
 import psutil
 from its_preselector.web_relay import WebRelay
@@ -127,7 +127,7 @@ def get_max_cpu_temperature(fahrenheit: bool = False) -> float:
         raise e
 
 
-def power_cycle_sigan(switches: Dict[str, WebRelay]):
+def power_cycle_sigan(switches: dict[str, WebRelay]):
     """
     Performs a hard power cycle of the signal analyzer. This method requires power to the signal analyzer is
     controlled by a Web_Relay (see https://www.github.com/ntia/Preselector) and that the switch id of that
diff --git a/scos_actions/metadata/sigmf_builder.py b/scos_actions/metadata/sigmf_builder.py
index 1e6106df..1fdac1f6 100644
--- a/scos_actions/metadata/sigmf_builder.py
+++ b/scos_actions/metadata/sigmf_builder.py
@@ -1,5 +1,5 @@
 import json
-from typing import List, Union
+from typing import Union
 
 import msgspec
 from sigmf import SigMFFile
@@ -268,7 +268,7 @@ def set_collection(self, collection: str) -> None:
 
     ### ntia-algorithm v2.0.1 ###
 
-    def set_data_products(self, data_products: List[Graph]) -> None:
+    def set_data_products(self, data_products: list[Graph]) -> None:
         """
         Set the value of the Global "ntia-algorithm:data_products" field.
 
@@ -276,7 +276,7 @@ def set_data_products(self, data_products: List[Graph]) -> None:
         """
         self.sigmf_md.set_global_field("ntia-algorithm:data_products", data_products)
 
-    def set_processing(self, processing: List[str]) -> None:
+    def set_processing(self, processing: list[str]) -> None:
         """
         Set the value of the Global "ntia-algorithm:processing" field.
 
@@ -286,7 +286,7 @@ def set_processing(self, processing: List[str]) -> None:
         self.sigmf_md.set_global_field("ntia-algorithm:processing", processing)
 
     def set_processing_info(
-        self, processing_info: List[Union[DigitalFilter, DFT]]
+        self, processing_info: list[Union[DigitalFilter, DFT]]
     ) -> None:
         """
         Set the value of the Global "ntia-algorithm:processing_info" field.
@@ -324,7 +324,7 @@ def set_diagnostics(self, diagnostics: Diagnostics) -> None:
     ### ntia-nasctn-sea v0.6.0 ###
 
     def set_max_of_max_channel_powers(
-        self, max_of_max_channel_powers: List[float]
+        self, max_of_max_channel_powers: list[float]
     ) -> None:
         """
         Set the value of the Global "ntia-nasctn-sea:max_of_max_channel_powers" field.
@@ -335,7 +335,7 @@ def set_max_of_max_channel_powers(
             "ntia-nasctn-sea:max_of_max_channel_powers", max_of_max_channel_powers
         )
 
-    def set_mean_channel_powers(self, mean_channel_powers: List[float]) -> None:
+    def set_mean_channel_powers(self, mean_channel_powers: list[float]) -> None:
         """
         Set the value of the Global "ntia-nasctn-sea:mean_channel_powers" field.
 
@@ -345,7 +345,7 @@ def set_mean_channel_powers(self, mean_channel_powers: List[float]) -> None:
             "ntia-nasctn-sea:mean_channel_powers", mean_channel_powers
         )
 
-    def set_median_channel_powers(self, median_channel_powers: List[float]) -> None:
+    def set_median_channel_powers(self, median_channel_powers: list[float]) -> None:
         """
         Set the value of the Global "ntia-nasctn-sea:median_channel_powers" field.
 
@@ -356,7 +356,7 @@ def set_median_channel_powers(self, median_channel_powers: List[float]) -> None:
         )
 
     def set_median_of_mean_channel_powers(
-        self, median_of_mean_channel_powers: List[float]
+        self, median_of_mean_channel_powers: list[float]
     ) -> None:
         """
         Set the value of the Global "ntia-nasctn-sea:median_of_mean_channel_powers" field.
diff --git a/scos_actions/metadata/structs/ntia_algorithm.py b/scos_actions/metadata/structs/ntia_algorithm.py
index eacf6baf..ad9b8209 100644
--- a/scos_actions/metadata/structs/ntia_algorithm.py
+++ b/scos_actions/metadata/structs/ntia_algorithm.py
@@ -1,5 +1,5 @@
 from enum import Enum
-from typing import List, Optional, Union
+from typing import Optional, Union
 
 import msgspec
 
@@ -16,7 +16,7 @@ class DigitalFilter(msgspec.Struct, tag=True, **SIGMF_OBJECT_KWARGS):
     Interface for generating `ntia-algorithm` `DigitalFilter` objects.
 
     :param id: Unique ID of the filter.
-    :param filter_type: Type of the digital fitler, given by the `FilterType`
+    :param filter_type: Type of the digital filter, given by the `FilterType`
         enum.
     :param feedforward_coefficients: Coefficients that define the feedforward
         filter stage.
@@ -32,8 +32,8 @@ class DigitalFilter(msgspec.Struct, tag=True, **SIGMF_OBJECT_KWARGS):
 
     id: str
     filter_type: FilterType
-    feedforward_coefficients: Optional[List[float]] = None
-    feedback_coefficients: Optional[List[float]] = None
+    feedforward_coefficients: Optional[list[float]] = None
+    feedback_coefficients: Optional[list[float]] = None
     attenuation_cutoff: Optional[float] = None
     frequency_cutoff: Optional[float] = None
     description: Optional[str] = None
@@ -49,19 +49,19 @@ class Graph(msgspec.Struct, **SIGMF_OBJECT_KWARGS):
     """
 
     name: str
-    series: Optional[List[str]] = None
+    series: Optional[list[str]] = None
     length: Optional[int] = None
     x_units: Optional[str] = None
-    x_axis: Optional[List[Union[int, float, str]]] = None
-    x_start: Optional[List[float]] = None
-    x_stop: Optional[List[float]] = None
-    x_step: Optional[List[float]] = None
+    x_axis: Optional[list[Union[int, float, str]]] = None
+    x_start: Optional[list[float]] = None
+    x_stop: Optional[list[float]] = None
+    x_step: Optional[list[float]] = None
     y_units: Optional[str] = None
-    y_axis: Optional[List[Union[int, float, str]]] = None
-    y_start: Optional[List[float]] = None
-    y_stop: Optional[List[float]] = None
-    y_step: Optional[List[float]] = None
-    processing: Optional[List[str]] = None
+    y_axis: Optional[list[Union[int, float, str]]] = None
+    y_start: Optional[list[float]] = None
+    y_stop: Optional[list[float]] = None
+    y_step: Optional[list[float]] = None
+    processing: Optional[list[str]] = None
     reference: Optional[str] = None
     description: Optional[str] = None
 
diff --git a/scos_actions/metadata/structs/ntia_core.py b/scos_actions/metadata/structs/ntia_core.py
index 531f2a6d..2e8f80f4 100644
--- a/scos_actions/metadata/structs/ntia_core.py
+++ b/scos_actions/metadata/structs/ntia_core.py
@@ -1,4 +1,4 @@
-from typing import List, Optional
+from typing import Optional
 
 import msgspec
 
@@ -57,8 +57,8 @@ class Antenna(msgspec.Struct, rename={"antenna_type": "type"}, **SIGMF_OBJECT_KW
     polarization: Optional[float] = None
     cross_polar_discrimination: Optional[float] = None
     gain: Optional[float] = None
-    horizontal_gain_pattern: Optional[List[float]] = None
-    vertical_gain_pattern: Optional[List[float]] = None
+    horizontal_gain_pattern: Optional[list[float]] = None
+    vertical_gain_pattern: Optional[list[float]] = None
     horizontal_beamwidth: Optional[float] = None
     vertical_beamwidth: Optional[float] = None
     voltage_standing_wave_ratio: Optional[float] = None
diff --git a/scos_actions/metadata/structs/ntia_diagnostics.py b/scos_actions/metadata/structs/ntia_diagnostics.py
index a0ef7c8d..8b6f851b 100644
--- a/scos_actions/metadata/structs/ntia_diagnostics.py
+++ b/scos_actions/metadata/structs/ntia_diagnostics.py
@@ -1,4 +1,4 @@
-from typing import List, Optional
+from typing import Optional
 
 import msgspec
 
@@ -13,7 +13,7 @@ class Preselector(msgspec.Struct, **SIGMF_OBJECT_KWARGS):
     :param noise_diode_temp: Temperature of the noise diode, in degrees Celsius.
     :param noise_diode_powered: Boolean indicating if the noise diode is powered.
     :param lna_powered: Boolean indicating if the lna is powered.
-    :param lna_temp: Temparature of the low noise amplifier, in degrees Celsius.
+    :param lna_temp: Temperature of the low noise amplifier, in degrees Celsius.
     :param antenna_path_enabled: Boolean indicating if the antenna path is enabled.
     :param noise_diode_path_enabled: Boolean indicating if the noise diode path is enabled.
     :param humidity: Relative humidity inside the preselector enclosure, as a percentage.
@@ -80,9 +80,9 @@ class SPU(msgspec.Struct, **SIGMF_OBJECT_KWARGS):
     ups_healthy: Optional[bool] = None
     replace_battery: Optional[bool] = None
 
-    temperature_sensors: Optional[List[DiagnosticSensor]] = None
-    humidity_sensors: Optional[List[DiagnosticSensor]] = None
-    power_sensors: Optional[List[DiagnosticSensor]] = None
+    temperature_sensors: Optional[list[DiagnosticSensor]] = None
+    humidity_sensors: Optional[list[DiagnosticSensor]] = None
+    power_sensors: Optional[list[DiagnosticSensor]] = None
     door_closed: Optional[bool] = None
 
 
@@ -97,7 +97,7 @@ class SsdSmartData(msgspec.Struct, **SIGMF_OBJECT_KWARGS):
     :param available_spare: Normalized percentage (0 to 100) of the remaining
         spare capacity available.
     :param available_spare_threshold: When the `available_spare` falls below
-        this threshold, an aynchronous event completion may occur. Indicated as
+        this threshold, an asynchronous event completion may occur. Indicated as
         a normalized percentage (0 to 100).
     :param percentage_used: Contains a vendor specific estimate of the percentage
         of NVM subsystem life used based on the actual usage and the manufacturer’s
diff --git a/scos_actions/metadata/structs/ntia_scos.py b/scos_actions/metadata/structs/ntia_scos.py
index b3d786e5..df0e4f83 100644
--- a/scos_actions/metadata/structs/ntia_scos.py
+++ b/scos_actions/metadata/structs/ntia_scos.py
@@ -1,4 +1,4 @@
-from typing import List, Optional
+from typing import Optional
 
 import msgspec
 
@@ -43,4 +43,4 @@ class ScheduleEntry(msgspec.Struct, **SIGMF_OBJECT_KWARGS):
     stop: Optional[str] = None
     interval: Optional[int] = None
     priority: Optional[int] = None
-    roles: Optional[List[str]] = None
+    roles: Optional[list[str]] = None
diff --git a/scos_actions/metadata/structs/ntia_sensor.py b/scos_actions/metadata/structs/ntia_sensor.py
index c57f605f..5a2cfb0a 100644
--- a/scos_actions/metadata/structs/ntia_sensor.py
+++ b/scos_actions/metadata/structs/ntia_sensor.py
@@ -1,5 +1,5 @@
 import logging
-from typing import List, Optional
+from typing import Optional
 
 import msgspec
 
@@ -110,10 +110,10 @@ class Preselector(msgspec.Struct, **SIGMF_OBJECT_KWARGS):
     """
 
     preselector_spec: Optional[HardwareSpec] = None
-    cal_sources: Optional[List[CalSource]] = None
-    amplifiers: Optional[List[Amplifier]] = None
-    filters: Optional[List[Filter]] = None
-    rf_paths: Optional[List[RFPath]] = None
+    cal_sources: Optional[list[CalSource]] = None
+    amplifiers: Optional[list[Amplifier]] = None
+    filters: Optional[list[Filter]] = None
+    rf_paths: Optional[list[RFPath]] = None
 
 
 class Calibration(
diff --git a/scos_actions/signal_processing/apd.py b/scos_actions/signal_processing/apd.py
index 2047f19e..b1aba99a 100644
--- a/scos_actions/signal_processing/apd.py
+++ b/scos_actions/signal_processing/apd.py
@@ -1,5 +1,3 @@
-from typing import Tuple
-
 import numexpr as ne
 import numpy as np
 
@@ -12,7 +10,7 @@ def get_apd(
     min_bin: float = None,
     max_bin: float = None,
     impedance_ohms: float = None,
-) -> Tuple[np.ndarray, np.ndarray]:
+) -> tuple[np.ndarray, np.ndarray]:
     """Estimate the APD by sampling the CCDF.
 
     The size of the output depends on ``bin_size_dB``, which
diff --git a/scos_actions/signal_processing/calibration.py b/scos_actions/signal_processing/calibration.py
index e1a4c847..03b28f35 100644
--- a/scos_actions/signal_processing/calibration.py
+++ b/scos_actions/signal_processing/calibration.py
@@ -1,5 +1,5 @@
 import logging
-from typing import Optional, Tuple
+from typing import Optional
 
 import numpy as np
 from its_preselector.preselector import Preselector
@@ -23,7 +23,7 @@ def y_factor(
     enr_linear: float,
     enbw_hz: float,
     temp_kelvins: float = 300.0,
-) -> Tuple[float, float]:
+) -> tuple[float, float]:
     """
     Perform Y-Factor calculations of noise figure and gain.
 
@@ -105,7 +105,7 @@ def get_linear_enr(
 
 def get_temperature(
     preselector: Preselector, sensor_idx: Optional[int] = None
-) -> Tuple[float, float, float]:
+) -> tuple[float, float, float]:
     """
     Get the temperature from a preselector sensor.
 
diff --git a/scos_actions/signal_processing/filtering.py b/scos_actions/signal_processing/filtering.py
index ae6bb527..3d2133de 100644
--- a/scos_actions/signal_processing/filtering.py
+++ b/scos_actions/signal_processing/filtering.py
@@ -1,4 +1,4 @@
-from typing import Tuple, Union
+from typing import Union
 
 import numpy as np
 from scipy.signal import ellip, ellipord, firwin, kaiserord, sos2zpk, sosfreqz
@@ -74,7 +74,7 @@ def generate_fir_low_pass_filter(
     :param width_Hz: Width of the transition region, in Hz.
     :param cutoff_Hz: Filter cutoff frequency, in Hz.
     :param sample_rate_Hz: Sampling rate, in Hz.
-    :return: Coeffiecients of the FIR low pass filter.
+    :return: Coefficients of the FIR low pass filter.
     """
     ord, beta = kaiserord(
         ripple=attenuation_dB, width=width_Hz / (0.5 * sample_rate_Hz)
@@ -93,7 +93,7 @@ def generate_fir_low_pass_filter(
 
 def get_iir_frequency_response(
     sos: np.ndarray, worN: Union[int, np.ndarray], sample_rate_Hz: float
-) -> Tuple[np.ndarray, np.ndarray]:
+) -> tuple[np.ndarray, np.ndarray]:
     """
     Get the frequency response of an IIR filter.
 
@@ -113,7 +113,7 @@ def get_iir_frequency_response(
 
 def get_iir_phase_response(
     sos: np.ndarray, worN: Union[int, np.ndarray], sample_rate_Hz: float
-) -> Tuple[np.ndarray, np.ndarray]:
+) -> tuple[np.ndarray, np.ndarray]:
     """
     Get the phase response of an IIR filter.
 
diff --git a/tox.ini b/tox.ini
index f04c3a61..de57049f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,9 +1,9 @@
 [tox]
 env_list =
-    py38
     py39
     py310
     py311
+    py312
 min_version = 4.5.1
 skip_missing_interpreters = true
 no_package = false
@@ -17,7 +17,7 @@ commands = pytest --cov-report term-missing --no-cov-on-fail --cov {posargs}
 
 [gh]  ; GitHub Actions CI with tox-gh
 python =
-    3.8 = py38
     3.9 = py39
     3.10 = py310
     3.11 = py311
+    3.12 = py312