diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..ebb5e4f
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,27 @@
+name: 'ci'
+
+on:
+  push:
+    branches:
+     - main
+     - github-ci
+  pull_request:
+
+jobs:
+  ci:
+    strategy:
+      matrix:
+        os: [ 'ubuntu-22.04' ]
+        go: [ '1.21', '1.22' ]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: 'Checkout source code'
+        uses: 'actions/checkout@v3'
+
+      - name: 'Set up Go'
+        uses: 'actions/setup-go@v4'
+        with:
+          go-version: ${{ matrix.go }}
+
+      - name: 'Test'
+        run: go list -f '{{.Dir}}/...' -m | xargs go test