diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
deleted file mode 100644
index 06e4af5..0000000
--- a/.github/workflows/build.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-name: Build
-on:
-  push:
-    tags:
-      - '[0-9]+.[0-9]+.[0-9]+'
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v1
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
-      - name: Login to Docker Hub
-        uses: docker/login-action@v1
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-      - name: Get tag
-        id: get_tag
-        run: echo "::set-output name=tag::${GITHUB_REF##*/}"
-      - name: Build and push
-        uses: docker/build-push-action@v2
-        with:
-          context: .
-          platforms: |
-            linux/amd64
-            linux/arm64
-          push: true
-          tags: |
-            mackerel/mackerel-agent:latest
-            mackerel/mackerel-agent:${{ steps.get_tag.outputs.tag }}