diff --git a/.github/workflows/test_macos.yml b/.github/workflows/test_macos.yml
new file mode 100644
index 0000000..21a40dc
--- /dev/null
+++ b/.github/workflows/test_macos.yml
@@ -0,0 +1,23 @@
+# Run tests on Mac OS.
+name: test_macos
+on: [push, pull_request]
+permissions: read-all
+jobs:
+  test_macos:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        include:
+        - os: macos-26
+          python-version: '3.14'
+          toxenv: 'py314'
+    steps:
+    - uses: actions/checkout@v5
+    - name: Install dependencies
+      run: |
+        brew update -q
+        brew install -q gettext gnu-sed python@${{ matrix.python-version }} tox || true
+        brew link --force gettext
+    - name: Run tests
+      run: |
+        tox -e ${{ matrix.toxenv }}
diff --git a/appveyor.yml b/appveyor.yml
index a5d4599..67ef6c2 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -30,16 +30,10 @@ environment:
     PYTHON_VERSION: "3.14"
     L2TBINARIES_TRACK: "dev"
     TARGET: wheel
-  - DESCRIPTION: "Run tests on Mac OS with Python 3.14"
-    APPVEYOR_BUILD_WORKER_IMAGE: macos-sonoma
-    HOMEBREW_NO_INSTALL_CLEANUP: 1
-    TARGET: tests
-    PYTHON_VERSION: "3.14"
 
 install:
 - cmd: "%PYTHON%\\python.exe -m pip install -U build pip setuptools twine wheel"
-- ps: If ($isWindows) { .\config\appveyor\install.ps1 }
-- sh: config/appveyor/install.sh
+- ps: .\config\appveyor\install.ps1
 
 build_script:
 - cmd: IF [%TARGET%]==[wheel] (
@@ -51,11 +45,10 @@ test_script:
     IF EXIST "tests\\end-to-end.py" (
         set PYTHONPATH=. &&
         "%PYTHON%\\python.exe" "tests\\end-to-end.py" --debug -c "config\\end-to-end.ini" ) )
-- sh: config/appveyor/runtests.sh
 
 artifacts:
 - path: dist\*.whl
 
 deploy_script:
-- ps: If ($env:APPVEYOR_REPO_TAG -eq "true" -And $isWindows -And $env:MACHINE_TYPE -eq "x86") {
+- ps: If ($env:APPVEYOR_REPO_TAG -eq "true" -And $env:MACHINE_TYPE -eq "x86") {
     Invoke-Expression "${env:PYTHON}\\python.exe -m twine upload dist/*.whl --username __token__ --password ${env:PYPI_TOKEN} --skip-existing" }
diff --git a/config/appveyor/install.sh b/config/appveyor/install.sh
deleted file mode 100755
index e0cee36..0000000
--- a/config/appveyor/install.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-# Script to set up tests on AppVeyor MacOS.
-
-set -e
-
-brew untap homebrew/homebrew-cask-versions
-brew update -q
-brew install -q gettext gnu-sed python@${PYTHON_VERSION} tox || true
-
diff --git a/config/appveyor/runtests.sh b/config/appveyor/runtests.sh
deleted file mode 100755
index 8de19b1..0000000
--- a/config/appveyor/runtests.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/sh
-# Script to run tests
-
-# Set the following environment variables to build libyal with gettext.
-export CPPFLAGS="-I/usr/local/include -I/usr/local/opt/gettext/include ${CPPFLAGS}"
-export LDFLAGS="-L/usr/local/lib -L/usr/local/opt/gettext/lib ${LDFLAGS}"
-
-# Set the following environment variables to build pycrypto and yara-python.
-export CPPFLAGS="-I/usr/local/opt/openssl@1.1/include ${CPPFLAGS}"
-export LDFLAGS="-L/usr/local/opt/openssl@1.1/lib ${LDFLAGS}"
-
-# Set the following environment variables to ensure tox can find Python.
-export PATH="/usr/local/opt/python@${PYTHON_VERSION}/bin:${PATH}"
-
-tox -e py${PYTHON_VERSION//./}