diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5834fde..e88fccf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,7 +6,9 @@ jobs:
     runs-on: macos-latest
     strategy:
       matrix:
-        python-version: ['3.11']
+        include:
+        - python-version: '3.11'
+          toxenv: 'py311'
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
@@ -15,22 +17,16 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install build dependencies
       run: |
-        brew update
-        brew install autoconf automake gettext pkgconfig
+        brew update -q
+        brew install -q autoconf automake gettext gnu-sed pkgconfig python@${{ matrix.python-version }} tox
         brew link --force gettext
         ln -s /usr/local/bin/glibtoolize /usr/local/bin/libtoolize
-    - name: Build Python module
+    - name: Build and test Python module
       run: |
         python setup.py update
         export CXXFLAGS="-std=c++14"
         python setup.py build
-        # Need to build sdist here to prevent:
-        # No local packages or working download links found for pytsk3==VERSION
-        python setup.py sdist
-        python setup.py install
-    - name: Test Python module
-      run: |
-        python run_tests.py
+        tox -e${{ matrix.toxenv }}
   build_ubuntu:
     runs-on: ubuntu-22.04
     strategy:
diff --git a/class_parser.py b/class_parser.py
index 81515c2..febd172 100644
--- a/class_parser.py
+++ b/class_parser.py
@@ -235,7 +235,7 @@
 DEBUG = 0
 
 # The pytsk3 version.
-VERSION = "20230928"
+VERSION = "20230930"
 
 # These functions are used to manage library memory.
 FREE = "aff4_free"
diff --git a/dpkg/changelog b/dpkg/changelog
index 1a9e730..a12569b 100644
--- a/dpkg/changelog
+++ b/dpkg/changelog
@@ -1,5 +1,5 @@
-pytsk3 (20230928-1) unstable; urgency=low
+pytsk3 (20230930-1) unstable; urgency=low
 
   * Auto-generated
 
- -- Joachim Metz <joachim.metz@gmail.com>  Thu, 28 Sep 2023 12:43:50 -0100
+ -- Joachim Metz <joachim.metz@gmail.com>  Sat, 30 Sep 2023 10:50:56 -0100
diff --git a/setup.cfg b/setup.cfg
index 0696b48..464a1ab 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = pytsk3
-version = 20230125
+version = 20230930
 description = Python bindings for the SleuthKit
 long_description = Python bindings for the SleuthKit
 author = Michael Cohen
diff --git a/setup.py b/setup.py
index ce43d62..10e569b 100755
--- a/setup.py
+++ b/setup.py
@@ -333,8 +333,14 @@ def run(self):
       subprocess.check_call(["./bootstrap"], cwd="sleuthkit")
 
     # Now derive the version based on the date.
-    with open("version.txt", "w") as fd:
-      fd.write(self.version)
+    with open("setup.cfg", "r", encoding="utf-8") as file_object:
+      setup_cfg_lines = file_object.readlines()
+
+    with open("setup.cfg", "w", encoding="utf-8") as file_object:
+      for line in setup_cfg_lines:
+        if line.startswith("version = "):
+          line = "version = {0:s}\n".format(self.version)
+        file_object.write(line)
 
     libtsk_path = os.path.join("sleuthkit", "tsk")
 
diff --git a/tox.ini b/tox.ini
index 5711d2b..effc9b4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,6 +14,6 @@ deps =
   setuptools
   wheel
 commands =
-  python -m pip wheel --no-build-isolation --wheel-dir=dist pytsk3
+  python -m build --no-isolation --outdir=dist --wheel
   python -m pip install --no-index --find-links=dist pytsk3
   python run_tests.py
diff --git a/version.txt b/version.txt
deleted file mode 100644
index 47cdec1..0000000
--- a/version.txt
+++ /dev/null
@@ -1 +0,0 @@
-20230928
\ No newline at end of file