diff --git a/.github/workflows/build-docker-images.yml b/.github/workflows/build-docker-images.yml
index 5af86d8..f8ea5dc 100644
--- a/.github/workflows/build-docker-images.yml
+++ b/.github/workflows/build-docker-images.yml
@@ -2,49 +2,30 @@
 name: Build and push Docker image
 
 on:
-  workflow_dispatch:
-    inputs:
-      platforms:
-        description: platforms to build for
-        type: string
-        default: linux/amd64,linux/arm64/v8
-        required: false
-      image-name:
-        description: a base name for image tags
-        type: string
-        default: lightningstream
-        required: false
-      image-tags:
-        description: image tags
-        type: string
-        default: type=semver,pattern={{version}}
-        required: false
-      push:
-        description: push image to Docker Hub
-        type: boolean
-        required: true
-    secrets:
-      DOCKERHUB_ORGANIZATION_NAME:
-        required: true
-      DOCKERHUB_USERNAME:
-        required: true
-      DOCKERHUB_TOKEN:
-        required: true
+  push:
+    branches:
+      - main
+    tags:
+      - v[0-9]+.[0-9]+.[0-9]+
 
 permissions:
   contents: read # principle of least privilege
 
 jobs:
   build:
-    name: Build Docker image
+    name: Build and push Docker image
     runs-on: ubuntu-22.04
+    env:
+      PLATFORMS: linux/amd64,linux/arm64/v8
+      IMAGE_NAME: lightningstream
+      IMAGE_TAGS: type=semver,pattern={{version}}
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
       - name: Set up Docker Buildx for multi-platform builds
         uses: docker/setup-buildx-action@v3
         with:
-          platforms: ${{ inputs.platforms }}
+          platforms: ${{ env.PLATFORMS }}
       - name: Log in to Docker Hub
         uses: docker/login-action@v3
         with:
@@ -54,12 +35,12 @@ jobs:
         uses: docker/metadata-action@v5
         with:
           images: >-
-            ${{ secrets.DOCKERHUB_ORGANIZATION_NAME }}/${{ inputs.image-name }}
-          tags: ${{ inputs.image-tags }}
+            ${{ secrets.DOCKERHUB_ORGANIZATION_NAME }}/${{ env.IMAGE_NAME }}
+          tags: ${{ env.IMAGE_TAGS }}
       - name: Build and push Docker image
         uses: docker/build-push-action@v6
         with:
-          platforms: ${{ inputs.platforms }}
-          push: ${{ inputs.push }}
+          platforms: ${{ env.PLATFORMS }}
+          push: true
           sbom: true
           tags: ${{ env.DOCKER_METADATA_OUTPUT_TAGS }}