diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f789a00..d4a4e33 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -74,14 +74,14 @@ jobs:
         run: build/${{ matrix.lang == 'C' && 'hello_world_c' || 'hello_world' }}
 
   use-action-with-specified-generator:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [windows-latest, ubuntu-latest, macos-latest]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3.3.0
 
-      - name: Install Ninja
-        run: sudo apt install -y ninja-build
-
       - name: Use this action with specified generator
         uses: ./
         with:
diff --git a/action.yml b/action.yml
index ccb28c8..8c80fd3 100644
--- a/action.yml
+++ b/action.yml
@@ -48,6 +48,16 @@ runs:
         echo "CMAKE_CONFIGURE_ARGS=${CONFIGURE_ARGS//[$'\t\r\n']}" >> $GITHUB_ENV
         echo "CMAKE_BUILD_ARGS=${BUILD_ARGS//[$'\t\r\n']}" >> $GITHUB_ENV
 
+    - name: Install Ninja
+      if: ${{ inputs.generator == 'Ninja' }}
+      shell: bash
+      run: |
+        case "$OSTYPE" in
+          darwin*)  brew install ninja ;;
+          linux*)   sudo apt install -y ninja-build ;;
+          *)        choco install ninja ;;
+        esac
+
     - name: Configure CMake
       shell: bash
       run: cmake ${{ env.CMAKE_CONFIGURE_ARGS }}