diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2da2d9b..59923f3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,15 +7,26 @@ jobs:
     strategy:
       matrix:
         os:
+        - macos-latest
         - ubuntu-latest
+        - windows-latest
     steps:
     - name: Checkout
       uses: actions/checkout@v4
-    - name: Install dependencies
+
+    - name: Install dependencies using Homebrew
+      if: ${{ matrix.os == 'macos-latest' }}
+      run: |
+        brew install expect
+
+    - name: Install dependencies using apt-get(8)
+      if: ${{ matrix.os == 'ubuntu-latest' }}
       run: |
-        sudo apt-get install -y expect
+          sudo apt-get install -y expect
+
     - name: Set up just
       uses: extractions/setup-just@v2
+
     - name: Run tests
       run: |
         just test
diff --git a/justfile b/justfile
index c61c290..b2abfce 100644
--- a/justfile
+++ b/justfile
@@ -20,6 +20,7 @@ release-windows:
 
 test: debug test-unit test-integration
 
+[unix]
 test-integration:
   {{ TCLSH }} tests/integration.tcl