diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
new file mode 100644
index 0000000000..ff6829f0de
--- /dev/null
+++ b/.github/workflows/macos.yml
@@ -0,0 +1,22 @@
+name: macos
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - '*'
+
+jobs:
+  build:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: Install dependencies
+      run: |
+        gem install bundler --no-document
+        bundle install
+    - name: Run test
+      run: |
+        rake ci-test
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
new file mode 100644
index 0000000000..e4e184ca4a
--- /dev/null
+++ b/.github/workflows/windows.yml
@@ -0,0 +1,29 @@
+name: windows
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - '*'
+
+jobs:
+  build:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        ruby: [ '2.6.x', '2.5.x' ]
+    steps:
+    - uses: actions/checkout@master
+    - name: Set up Ruby
+      uses: actions/setup-ruby@v1
+      with:
+        version: ${{ matrix.ruby }}
+    - name: Install dependencies
+      run: |
+        gem install bundler --no-document
+        bundle install
+    - name: Run test
+      run: |
+        rake ci-test