diff --git a/.github/workflows/spectrumdevice-integration-tests.yml b/.github/workflows/spectrumdevice-integration-tests.yml
index 5ce5a3f..8609c8e 100644
--- a/.github/workflows/spectrumdevice-integration-tests.yml
+++ b/.github/workflows/spectrumdevice-integration-tests.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
 
     steps:
     - uses: actions/checkout@v3
diff --git a/.github/workflows/spectrumdevice-linters.yml b/.github/workflows/spectrumdevice-linters.yml
index c5910ad..e2c0500 100644
--- a/.github/workflows/spectrumdevice-linters.yml
+++ b/.github/workflows/spectrumdevice-linters.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
 
       matrix:
-        python-version: ["3.11"]
+        python-version: ["3.12"]
 
     steps:
     - uses: actions/checkout@v3
diff --git a/.github/workflows/spectrumdevice-unit-tests.yml b/.github/workflows/spectrumdevice-unit-tests.yml
index 7a1e8d4..8f191e5 100644
--- a/.github/workflows/spectrumdevice-unit-tests.yml
+++ b/.github/workflows/spectrumdevice-unit-tests.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
 
     steps:
     - uses: actions/checkout@v3
diff --git a/README.md b/README.md
index 3644eba..a4ec175 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,8 @@ Limitations section for more information.
 * [PyPI](https://pypi.org/project/spectrumdevice/)
 
 ## Requirements
+Python 3.9+
+
 `spectrumdevice` works with hardware on Windows and Linux. Spectrum do not currently provide a hardware driver for 
 macOS, but `spectrumdevice` provides mock classes for development and testing without hardware, which work on macOS.
 
diff --git a/setup.cfg b/setup.cfg
index febe372..1a25da2 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -16,10 +16,10 @@ classifiers =
  Operating System :: POSIX :: Linux
  Operating System :: Microsoft :: Windows :: Windows 10
  Operating System :: MacOS :: MacOS X
- Programming Language :: Python :: 3.8
  Programming Language :: Python :: 3.9
  Programming Language :: Python :: 3.10
-  Programming Language :: Python :: 3.11
+ Programming Language :: Python :: 3.11
+ Programming Language :: Python :: 3.12
  Topic :: Scientific/Engineering
  Typing :: Typed
 project_urls =
@@ -48,12 +48,12 @@ test=pytest
 
 [options.extras_require]
 test =
- pytest == 6.2.5
+ pytest == 7.4.3
 dev =
- flake8 == 4.0
- flake8-bugbear == 21.9.2
+ flake8 == 6.1.0
+ flake8-bugbear == 23.9.16
  black == 22.3.0
- mypy == 1.3.0
+ mypy == 1.6.1
  types-setuptools == 67.8.0.0
 doc =
  pdoc == 8.0.1
@@ -61,7 +61,7 @@ examples =
  matplotlib >= 3.5.0
 
 [mypy]
-python_version = 3.11
+python_version = 3.12
 warn_unused_configs = True
 disallow_subclassing_any = True
 disallow_untyped_calls = True
diff --git a/src/spectrumdevice/spectrum_wrapper/error_handler.py b/src/spectrumdevice/spectrum_wrapper/error_handler.py
index 01875be..1381a81 100644
--- a/src/spectrumdevice/spectrum_wrapper/error_handler.py
+++ b/src/spectrumdevice/spectrum_wrapper/error_handler.py
@@ -1,15 +1,13 @@
 """Defines an error handling wrapper function for wrapping calls to the Spectrum API."""
-
 # Christian Baker, King's College London
 # Copyright (c) 2021 School of Biomedical Engineering & Imaging Sciences, King's College London
 # Licensed under the MIT. You may obtain a copy at https://opensource.org/licenses/MIT.
 
 import logging
 from functools import wraps
+from importlib import resources
 from typing import Callable, Dict, Any
 
-from pkg_resources import resource_filename
-
 from spectrumdevice.exceptions import SpectrumApiCallFailed, SpectrumFIFOModeHardwareBufferOverrun
 from spectrum_gmbh.spcerr import (
     ERR_OK,
@@ -24,10 +22,12 @@
 
 def _parse_errors_table() -> Dict[int, str]:
     errors: Dict[int, str] = {}
-    with open(resource_filename(__name__, "spectrum_errors.csv"), "r") as f:
-        for line in f.readlines():
-            cells = line.split(",")
-            errors[int(cells[2].strip())] = cells[3].strip()
+    errors_file = resources.files(__package__) / "spectrum_errors.csv"
+    with resources.as_file(errors_file) as file_path:
+        with open(file_path) as f:
+            for line in f.readlines():
+                cells = line.split(",")
+                errors[int(cells[2].strip())] = cells[3].strip()
     return errors