diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..cfb15df
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,44 @@
+name: CI
+
+on:
+  push:
+
+permissions:
+  contents: write
+  packages: write
+
+env:
+  DOCKER_REPO: ghcr.io/${{ github.repository_owner }}/pgpool
+
+jobs:
+  publish_docker:
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+
+    strategy:
+      fail-fast: false
+      matrix:
+        version: ['4.4.12', '4.5.7', '4.6.2']
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/setup-qemu-action@v3
+      - uses: docker/setup-buildx-action@v3
+
+      - name: Login to Github Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push images
+        uses: docker/build-push-action@v6
+        with:
+          context: ./pgpool.docker/
+          file: ./pgpool.docker/Dockerfile.pgpool
+          build-args: |
+            PGPOOL_VER=${{ matrix.version }}
+          push: true
+          platforms: linux/amd64,linux/arm64
+          tags: |
+            ${{ env.DOCKER_REPO }}:${{ matrix.version }}
diff --git a/pgpool.docker/Dockerfile.pgpool b/pgpool.docker/Dockerfile.pgpool
index f9ba0e7..35b3bd4 100644
--- a/pgpool.docker/Dockerfile.pgpool
+++ b/pgpool.docker/Dockerfile.pgpool
@@ -1,6 +1,7 @@
-FROM alpine:3.17
+ARG ALPINE=3.20
+FROM alpine:${ALPINE}
 
-ARG PGPOOL_VER
+ARG PGPOOL_VER=4.4.8
 
 ENV PGPOOL_INSTALL_DIR /opt/pgpool-II
 ENV PGPOOL_CONF_VOLUME /config