diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c158df2..a9c5e17 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -7,28 +7,33 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Setup Python
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4
         with:
           python-version: '3.10'
-      - name: Install tox
-        run: python -m pip install tox
+          cache: 'pip'
+          cache-dependency-path: 'requirements/*.txt'
+      - name: Install dev dependencies
+        run: python -m pip install -r requirements/dev.txt
       - name: Run linting
         run: python -m tox -e lint
 
   test:
-    runs-on: ubuntu-latest
     strategy:
       matrix:
         python: ['3.6', '3.7', '3.8', '3.9', '3.10']
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Setup Python
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python }}
-      - name: Install tox
-        run: python -m pip install tox
+          cache: 'pip'
+          cache-dependency-path: 'requirements/*.txt'
+      - name: Install dev dependencies
+        run: python -m pip install -r requirements/dev.txt
       - name: Run tests
         run: python -m tox -e py  # Run tox using the version of Python in `PATH`
diff --git a/.github/workflows/pypi-release.yml b/.github/workflows/pypi-release.yml
index 1a9fbc8..50826f1 100644
--- a/.github/workflows/pypi-release.yml
+++ b/.github/workflows/pypi-release.yml
@@ -9,17 +9,18 @@ jobs:
   build-and-publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Python
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4
         with:
-          python-version: "3.x"
+          python-version: "3.10"
+          cache: 'pip'
       - name: Install build dependencies
         run: pip install -U setuptools wheel build
       - name: Build
         run: python -m build .
       - name: Publish
-        uses: pypa/gh-action-pypi-publish@master
+        uses: pypa/gh-action-pypi-publish@release/v1
         with:
           password: ${{ secrets.pypi_password }}
       - name: Install GitPython and cloudevents for pypi_packaging
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7bed84b..837a1cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 - Code quality and styling tooling is unified and configs compatibility is ensured ([#167])
+- CI configurations updated and added macOS and Windows tests ([#169])
 
 ### Removed
 - `docs` folder and related unused tooling ([#168])
@@ -151,3 +152,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [#165]: https://github.com/cloudevents/sdk-python/pull/165
 [#167]: https://github.com/cloudevents/sdk-python/pull/167
 [#168]: https://github.com/cloudevents/sdk-python/pull/168
+[#169]: https://github.com/cloudevents/sdk-python/pull/169